Site Index & Navigator
Explore the entire NextSem curriculum. Instantly navigate across 144 revision subjects, interactive command-line sandbox terminals, visual study notebooks, and custom AI tools.
Home Page
/
NextSem Academy main landing page and platform features overview.
About Us
/about
Our mission, teaching methodology, and developer credentials.
User Dashboard
/profile
Personalized revision workspace tracking your XP, badges, and progress.
Operating System Desktop
/simulator
Visual desktop sandbox featuring drag-and-drop file operations.
Interactive Sandbox
/playground
Realtime coding editor and interactive logic components sandbox.
Git Basics Guide
/git
Step-by-step documentation detailing Git repositories and branches.
Git Terminal Sandbox
/git/terminal
Hands-on terminal simulator for executing real git commit operations.
Privacy Policy
/privacy
NextSem Academy terms of user data confidentiality and cookies policy.
Terms of Service
/terms
Terms and conditions detailing student usage regulations.
HTML5 & Web Architecture
/book/subject-html
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Windows 11 Command Prompt & CLI Terminal
/book/subject-cli
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
CSS3 Styling, Flexbox & Grid
/book/subject-css
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
JavaScript ES6+ & Web Logic
/book/subject-js
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
React.js & Component Architecture
/book/subject-react
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Node.js & Express REST APIs
/book/subject-nodejs
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Git Version Control & GitHub
/book/subject-git
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
6 Structured Developer Learning Tracks
/book/subject-tracks
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
15+ Interactive Developer Mini-Projects
/book/subject-projects
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
2026 Full Stack Web Developer Roadmap
/book/subject-roadmap
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Interactive Code Playground & IDE
/book/subject-playground
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Visual Studio Code Download, Windows 11 Setup & First HTML Page
/book/html-download-install-vscode-windows-11-setup-guide
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
HTML Introduction (What is HTML?)
/book/html-html-introduction-what-is-html
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Client vs. Server Model
/book/html-free-web-development-lessons-client-server-model
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Understanding DNS Lookup
/book/html-how-dns-lookup-works-step-by-step
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
IP Addresses Explained (IPv4 vs. IPv6)
/book/html-ipv4-vs-ipv6-address-types-tutorial
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
TCP/IP 3-Way Handshake
/book/html-tcp-ip-3-way-handshake-process
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Anatomy of an HTTP Request
/book/html-anatomy-of-http-request-headers-verbs
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Anatomy of an HTTP Response
/book/html-http-response-status-codes-explained
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Anatomy of a URL
/book/html-how-to-read-url-query-parameters-path
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
How Browsers Render HTML (DOM)
/book/html-how-browser-renders-html-dom-tree
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Introduction to Browser DevTools
/book/html-how-to-use-chrome-developer-tools-elements
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
The <!DOCTYPE html> Declaration
/book/html-doctype-html5-declaration-syntax
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
The <html> Root Element
/book/html-html-root-element-lang-attribute
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
The <head> Container
/book/html-html-head-container-metadata
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
The <title> Element
/book/html-html-title-element-seo-importance
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Responsive Viewport Configuration
/book/html-html-meta-charset-utf8-encoding
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Adding Favicons
/book/html-adding-favicons-link-rel-icon
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Linking CSS Stylesheets
/book/html-linking-external-css-stylesheets-link
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Internal CSS with the <style> Tag
/book/html-internal-css-styles-style-tag
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Script Insertion with <script>
/book/html-script-tag-insert-javascript-code
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
The <body> Container
/book/html-html-body-tag-visible-content
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Heading Elements (<h1> to <h6>)
/book/html-html-heading-tags-h1-to-h6
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
The Paragraph Element (<p>)
/book/html-html-paragraph-tag-p-margins
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Line Breaks (<br />)
/book/html-line-break-br-tag-text-split
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Horizontal Rules (<hr />)
/book/html-horizontal-rule-hr-tag-separator
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Div Containers (<div>)
/book/html-div-tag-generic-block-level-container
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Span Containers (<span>)
/book/html-span-tag-generic-inline-container
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Blockquotes (<blockquote>)
/book/html-blockquote-tag-long-quotations-cite
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Inline Quotes (<q>)
/book/html-inline-quote-q-tag-quotation-marks
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Address Details (<address>)
/book/html-address-tag-author-contact-information
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Presentational Bold (<b>) vs. Semantic Strong (<strong>)
/book/html-bold-b-vs-semantic-strong-tag
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Presentational Italic (<i>) vs. Semantic Emphasis (<em>)
/book/html-italic-i-vs-semantic-emphasis-em-tag
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Highlighted Text (<mark>)
/book/html-highlight-text-mark-tag-search-results
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Code Snippets (<code>)
/book/html-monospace-code-snippet-code-tag
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Preformatted Text (<pre>)
/book/html-preformatted-text-pre-tag-spaces-tabs
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Insertions (<ins>) & Deletions (<del>)
/book/html-insert-ins-and-delete-del-tags
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Strikethrough (<s>)
/book/html-strikethrough-s-tag-outdated-content
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Abbreviations (<abbr>)
/book/html-abbreviation-abbr-tag-title-tooltip
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Defining Terms (<dfn>)
/book/html-defining-term-dfn-tag-first-instance
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Superscript (<sup>) & Subscript (<sub>)
/book/html-superscript-sup-and-subscript-sub-tags
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Anchor Elements (<a>) & the href Attribute
/book/html-anchor-a-tag-href-hyperlinks
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Absolute vs. Relative Paths
/book/html-absolute-vs-relative-link-paths
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Parent Directory Hopping (../)
/book/html-parent-directory-hopping-relative-paths
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Grandparent Directory Hopping (../../)
/book/html-grandparent-directory-hopping-double-slash
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Linking to Email Addresses (mailto:)
/book/html-email-mailto-links-anchor-tag
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Telephone Dialing Links (tel:)
/book/html-telephone-dialing-tel-links-mobile
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Download Attribute (force download)
/book/html-open-link-new-tab-target-blank
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
The Image Element (<img>)
/book/html-image-src-alt-attributes-elements
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Image Sizing (width & height)
/book/html-image-sizing-width-height-attributes
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Responsive Images (srcset & sizes)
/book/html-responsive-images-srcset-sizes-attributes
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Art Direction with <picture> & <source>
/book/html-art-direction-picture-source-elements
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Lazy Loading Images (loading attribute)
/book/html-lazy-loading-images-loading-attribute
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Semantic Image Wrappers (<figure> & <figcaption>)
/book/html-figure-figcaption-semantic-image-wrappers
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Vector Graphics (<svg>)
/book/html-inline-vector-graphics-svg-element
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Image Maps (<map> & <area>)
/book/html-image-maps-map-area-coordinate-tags
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Favicon Formats & Link Configurations
/book/html-favicon-modern-format-link-types
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Capstone Project: Responsive Photo Gallery
/book/html-capstone-photo-gallery-responsive
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Audio Elements (src & controls)
/book/html-audio-elements-src-controls-autoplay-attributes
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Audio Fallback Formats & Sources
/book/html-audio-fallback-source-format-types
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Video Elements (poster & preload)
/book/html-video-elements-src-poster-preload-settings
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Video Subtitles & Captions (<track>)
/book/html-video-subtitles-tracks-element
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
External Site Embedding (<iframe> & sandbox)
/book/html-embedding-external-sites-iframe-sandbox
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Plugin Insertion (<embed> & <object>)
/book/html-plugin-insertion-embed-object-elements
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Custom Data Attributes (data-*)
/book/html-custom-data-attributes-data-prefix
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Iframe Security & Permission Policies
/book/html-iframe-communication-security-headers
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
HTML5 Geolocation Semantic Structure
/book/html-html5-native-geolocation-api-details
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Capstone Project: Media Showcase Layout
/book/html-capstone-interactive-video-player
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Unordered Lists (<ul> and <li>)
/book/html-unordered-lists-ul-li-bullet-points
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Ordered Lists (<ol> and <li>)
/book/html-ordered-lists-ol-li-numbered-steps
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Ordered Lists Start & Reversed Attributes
/book/html-ordered-list-start-reversed-indexing
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Definition Lists (<dl>, <dt>, and <dd>)
/book/html-description-lists-dl-dt-dd-glossary
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Tables Rows & Cells (<tr>, <td>, <th>)
/book/html-table-container-grid-rows-columns
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Table Column Spanning (colspan & rowspan)
/book/html-table-colspan-merge-columns
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Table Structured Sections (<thead>, <tbody>, <tfoot>)
/book/html-table-thead-tbody-tfoot-semantics
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Table Column Groups (<colgroup> & <col>)
/book/html-table-column-groups-colgroup-col-widths
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Table Borders & Spacing Layouts
/book/html-table-borders-cellpadding-cellspacing
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Capstone Project: Dynamic Pricing Grid
/book/html-capstone-weekly-schedule-pricing-grid
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Form Action & Method (processing basics)
/book/html-form-action-method-attributes-processing
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Form Labels (for attribute linkage)
/book/html-form-labeling-for-attribute-linkage
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Dropdown Select Lists (<select> and <option>)
/book/html-text-password-inputs-type-attributes
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Multi-line Input (<textarea>)
/book/html-multiline-textarea-rows-cols-settings
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Binding Input Labels (<label> wrapping)
/book/html-buttons-submit-button-reset-types
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Form Groups (<fieldset> and <legend>)
/book/html-form-groups-fieldset-legend-elements
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Form Field Required Validation
/book/html-form-validation-required-maxlength-minlength
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Regex Pattern Matching (pattern attribute)
/book/html-regex-pattern-matching-validation
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Progress Indicators (<progress>) & Meter Gauges (<meter>)
/book/html-html5-numeric-ranges-type-number-range
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Autocomplete Data Lists (<datalist>)
/book/html-autocomplete-datalist-input-suggestions
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Collapsible Accordions (<details> and <summary>)
/book/html-collapsible-accordions-details-summary
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Native Modals & Popups (<dialog>)
/book/html-native-modals-dialog-showmodal-methods
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Web Components Templates (<template> and <slot>)
/book/html-web-components-template-slot-elements
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Canvas Graphics (<canvas>)
/book/html-canvas-graphics-draw-shapes-context
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Capstone Project: Complete Semantic Portfolio
/book/html-capstone-portfolio-layout-page
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
How to Open Windows 11 Command Prompt (cmd.exe)
/book/cli-introduction-to-command-line-interface-cli-basics
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Essential Windows CMD Commands (ver, cls, help, title)
/book/cli-learn-windows-command-prompt-cmd-basics
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Windows File System Structure & Drive Navigation (C:, D:)
/book/cli-windows-drive-letters-and-file-system-structure
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Directory Navigation & Creation (dir, mkdir, cd, rmdir)
/book/cli-mkdir-cd-dir-working-with-windows-directories
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
File Operations for Web Developers (copy, move, ren, del)
/book/cli-copy-move-rename-delete-files-cmd
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Wildcards, Pipes & I/O Redirection (*, ?, >, >>, |)
/book/cli-windows-cli-wildcards-and-stream-redirection
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Environment Variables, System PATH & prompt Customization
/book/cli-how-to-customize-windows-command-prompt
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Process Audit & Task Management (tasklist, taskkill for freeing node ports)
/book/cli-windows-task-management-taskkill-schtasks
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Network Diagnostics & Web Server Inspection (ipconfig, ping, nslookup, netstat)
/book/cli-network-troubleshooting-ping-tracert-ipconfig
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Windows Batch Scripting (.bat) for Web App Deployment
/book/cli-learn-windows-batch-files-scripting-basics
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Managing Hidden Files & System Attributes (attrib +h, attrib -h)
/book/cli-windows-file-attributes-attrib-command
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
System Hardware & Environment Auditing (systeminfo, hostname)
/book/cli-windows-system-info-systeminfo-hostname
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Configuring Permanent Environment Variables (setx)
/book/cli-windows-environment-path-system-variables
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Storage Partition & Disk Space Management (fsutil, vol)
/book/cli-windows-disk-management-chkdsk-diskpart
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Advanced Network Route Inspection (tracert, pathping)
/book/cli-windows-network-routing-tracert-pathping
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Text Search & Stream Filtering (findstr /i /n, more)
/book/cli-windows-cmd-text-filtering-findstr-more
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Batch Script Conditionals & Control Flow (if exist, goto)
/book/cli-windows-batch-control-flow-if-goto
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Batch File Loops & File Processing (for /f, call)
/book/cli-windows-batch-loops-for-in-do-automation
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Getting Started with Git CLI (git --version, git config)
/book/cli-introduction-to-git-version-control-cli
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Initializing Repositories & Staging Changes (git init, git status, git add)
/book/cli-git-init-repository-staging-status
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Creating Commits & Inspecting History (git commit, git log)
/book/cli-git-commit-history-git-log
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Managing Feature Branches (git branch, git switch, git checkout -b)
/book/cli-git-branching-checkout-git-switch
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Merging Branches & Conflict Resolution (git merge)
/book/cli-git-merging-conflict-resolution
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Connecting Remote Repositories & GitHub Sync (git push, git pull)
/book/cli-git-remote-github-push-pull
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Node.js & NPM Package Management (node -v, npm init, npm i)
/book/cli-node-npm-npx-cli-package-management
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Scaffolding Modern Web Apps (npx create-next-app, npx create-vite)
/book/cli-npx-create-next-app-vite-setup
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Executing NPM Scripts & Build Pipelines (npm run dev, npm run build)
/book/cli-npm-scripts-dev-build-start
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Securing API Keys with .env.local & process.env
/book/cli-env-files-dotenv-environment-variables
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Testing REST APIs from Terminal (curl -I, curl -X POST)
/book/cli-curl-http-requests-api-testing-cli
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Deploying Web Apps to Cloud via CLI (vercel, firebase deploy)
/book/cli-cloud-deployment-vercel-firebase-cli
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Command Chaining: Run Multiple Commands (&&, ||, &)
/book/cli-windows-cmd-command-chaining-and-or
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Piping & Output Redirection (|, >, >>, 2>&1)
/book/cli-windows-cmd-piping-redirection-output
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
CMD Variables & Arithmetic (set, set /a, %RANDOM%)
/book/cli-windows-cmd-variables-set-arithmetic
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
CMD For Loops: Iterate Files & Ranges (for /l, for /f)
/book/cli-windows-cmd-for-loops-batch
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
CMD Conditional Logic: if, if not, if errorlevel
/book/cli-windows-cmd-if-else-errorlevel
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Date, Time & Pausing Execution (date /t, time /t, timeout)
/book/cli-windows-cmd-date-time-timeout-commands
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Copying Files & Folders: xcopy and robocopy
/book/cli-windows-cmd-xcopy-robocopy-file-sync
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Symbolic Links & Junction Points (mklink, mklink /d)
/book/cli-windows-cmd-symbolic-links-mklink
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
File Permissions from CMD (icacls, takeown)
/book/cli-windows-cmd-icacls-file-permissions
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Scheduled Tasks from CMD (schtasks /create, /run, /delete)
/book/cli-windows-cmd-scheduled-tasks-schtasks
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Windows Services via CMD (net start, net stop, sc query)
/book/cli-windows-cmd-services-net-sc-commands
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Process Management: tasklist, taskkill, Port Finder
/book/cli-windows-cmd-process-management-tasklist-taskkill
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Network Diagnostics: netstat, ipconfig, nslookup
/book/cli-windows-cmd-netstat-network-diagnostics
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
SSH from Windows CMD: Connect to Remote Servers
/book/cli-windows-cmd-ssh-remote-server-access
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Making HTTP API Requests from CMD (curl — Deep Dive)
/book/cli-windows-cmd-curl-http-requests-api
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Windows Registry from CMD (reg query, reg add, reg delete)
/book/cli-windows-cmd-registry-cli-reg-query-add
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
System Information via CMD: wmic, systeminfo Advanced
/book/cli-windows-cmd-wmic-system-info
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Customizing CMD Appearance (color, mode, title, prompt)
/book/cli-windows-cmd-color-mode-title-customization
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Network Configuration via CMD: netsh Firewall & WiFi
/book/cli-windows-cmd-netsh-firewall-network-config
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Creating & Running Batch Scripts (.bat files) — Full Guide
/book/cli-windows-cmd-batch-file-creation-run
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
PowerShell Introduction: The Next-Level Windows Terminal
/book/cli-windows-powershell-introduction-basics
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
PowerShell File System: Get-ChildItem, New-Item, Remove-Item
/book/cli-windows-powershell-file-system-navigation
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
PowerShell Variables, Data Types & String Operations
/book/cli-windows-powershell-variables-types
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
PowerShell Object Pipeline: Where-Object, Select-Object, Sort-Object
/book/cli-windows-powershell-objects-pipeline
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
PowerShell Control Flow: if, foreach, Functions
/book/cli-windows-powershell-if-loops-functions
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
PowerShell Web Requests & JSON (Invoke-WebRequest, Invoke-RestMethod)
/book/cli-windows-powershell-web-requests-json
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
PowerShell Error Handling: try, catch, finally
/book/cli-windows-powershell-error-handling-trycatch
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
PowerShell Modules: Install-Module, Import-Module
/book/cli-windows-powershell-modules-install-import
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
PowerShell Profile: Customize Your Terminal on Every Launch
/book/cli-windows-powershell-profile-customization
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
PowerShell Background Jobs: Run Tasks Asynchronously
/book/cli-windows-powershell-jobs-background-tasks
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
VS Code CLI: Open Projects & Install Extensions from Terminal
/book/cli-windows-vscode-cli-code-command
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
TypeScript CLI: tsc --init, tsc --watch, Type Checking
/book/cli-windows-typescript-cli-tsc-commands
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
ESLint & Prettier from CLI: Auto-Fix Code Quality Issues
/book/cli-windows-eslint-prettier-cli
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
NPM Security Audit: npm audit, npm audit fix
/book/cli-windows-npm-audit-security-vulnerability-check
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Debugging Node.js from CLI (node --inspect, Chrome DevTools)
/book/cli-windows-cmd-node-debugging-inspect
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Scaffolding Projects: CRA, Vite, Astro, T3 Stack from CLI
/book/cli-windows-cmd-npx-create-react-app-alternatives
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Advanced Git: git stash, git rebase, git cherry-pick
/book/cli-windows-cmd-git-stash-rebase-advanced
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Git Tags & Releases: git tag, git push --tags
/book/cli-windows-cmd-git-tags-releases
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
GitHub CLI (gh): Create Repos, PRs & Issues from Terminal
/book/cli-windows-cmd-github-cli-gh-commands
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Docker CLI Basics: docker run, docker build, docker ps
/book/cli-windows-cmd-docker-basics-run-build
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Docker Compose: Run Full Stack Apps with One Command
/book/cli-windows-cmd-docker-compose-multi-service
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
SSH Keys for GitHub: ssh-keygen, Adding to GitHub Account
/book/cli-windows-ssh-keygen-github-setup
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Windows Package Manager: winget install, winget upgrade
/book/cli-windows-cmd-winget-package-manager
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Git Branch Workflows: GitFlow, Feature Branch, Trunk-Based Dev
/book/cli-windows-cmd-git-workflows-gitflow
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Secrets & API Key Management: .env Files, dotenv, cross-env
/book/cli-windows-cmd-environment-secrets-management
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Nginx CLI: Local Reverse Proxy & Static File Server Setup
/book/cli-windows-cmd-nginx-local-reverse-proxy
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Testing from CLI: jest --watch, Coverage Reports
/book/cli-windows-cmd-jest-testing-cli
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
AWS CLI Basics: Configure, S3 Upload, EC2 Status
/book/cli-windows-cmd-aws-cli-basics
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Google Cloud CLI (gcloud): Deploy Apps, Manage Firebase
/book/cli-windows-cmd-gcloud-cli-basics
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
CI/CD Basics: GitHub Actions Workflow with CLI Triggers
/book/cli-windows-cmd-ci-cd-github-actions-basics
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Netlify CLI: Deploy Static Sites & Next.js Apps
/book/cli-windows-cmd-netlify-cli-deployment
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
PM2 Process Manager: Keep Node.js Servers Running 24/7
/book/cli-windows-cmd-pm2-process-manager-nodejs
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Prisma ORM CLI: prisma generate, prisma migrate, prisma studio
/book/cli-windows-cmd-prisma-cli-database
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Redis CLI Basics: Set, Get, Cache & Pub/Sub from Terminal
/book/cli-windows-cmd-redis-cli-caching
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
MongoDB CLI: mongosh — Query, Insert, Update Documents
/book/cli-windows-cmd-mongodb-cli-mongosh
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Full REST API Testing from CMD (curl as Postman Alternative)
/book/cli-windows-cmd-curl-postman-alternative
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
JSON Processing from CLI: jq — Filter & Transform JSON
/book/cli-windows-cmd-jq-json-processing
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
SSL/HTTPS from CMD: openssl — Generate Certs & Inspect TLS
/book/cli-windows-cmd-openssl-https-certificates
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Performance Profiling from CMD: node --prof, Lighthouse CLI
/book/cli-windows-cmd-performance-profiling
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Advanced Text Search: findstr Regex, Multi-File Patterns
/book/cli-windows-cmd-regex-grep-findstr-advanced
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
File Comparison from CMD: fc, git diff, comp
/book/cli-windows-cmd-file-comparison-fc-diff
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
File Compression from CMD: tar, Compress-Archive (PowerShell)
/book/cli-windows-cmd-tar-zip-compression
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Advanced Batch Scripting: Functions, Subroutines & Error Codes
/book/cli-windows-cmd-batch-advanced-functions
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
WSL (Windows Subsystem for Linux): Linux Commands on Windows
/book/cli-windows-cmd-wsl-linux-on-windows
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Windows Terminal & tmux: Multi-Pane Development Environment
/book/cli-windows-cmd-terminal-multiplexer-windows-terminal
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Alternative Package Managers: Chocolatey & Scoop
/book/cli-windows-cmd-choco-scoop-package-managers
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
.NET CLI Basics: dotnet new, dotnet run, dotnet build
/book/cli-windows-cmd-dotnet-cli-basics
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Python CLI: pip, Virtual Environments, Scripts from CMD
/book/cli-windows-cmd-python-pip-virtualenv
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Developer Productivity: CMD Aliases, History & Keyboard Shortcuts
/book/cli-windows-cmd-developer-productivity-shortcuts
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Full Stack Developer CLI Mastery — Complete Windows CMD Review
/book/cli-windows-cmd-full-stack-developer-mastery-review
Bite-sized visual textbook chapter with interactive code widgets, drills, and flashcards.
Lesson 0: Visual Studio Code Download, Windows 11 Setup & First HTML Page
/html/download-install-vscode-windows-11-setup-guide
Free HTML lesson covering Visual Studio Code Download, Windows 11 Setup & First HTML Page with interactive checks in English, Hinglish, and Hindi.
Lesson 1: HTML Introduction (What is HTML?)
/html
Free HTML lesson covering HTML Introduction (What is HTML?) with interactive checks in English, Hinglish, and Hindi.
Lesson 2: Client vs. Server Model
/html/free-web-development-lessons-client-server-model
Free HTML lesson covering Client vs. Server Model with interactive checks in English, Hinglish, and Hindi.
Lesson 3: Understanding DNS Lookup
/html/how-dns-lookup-works-step-by-step
Free HTML lesson covering Understanding DNS Lookup with interactive checks in English, Hinglish, and Hindi.
Lesson 4: IP Addresses Explained (IPv4 vs. IPv6)
/html/ipv4-vs-ipv6-address-types-tutorial
Free HTML lesson covering IP Addresses Explained (IPv4 vs. IPv6) with interactive checks in English, Hinglish, and Hindi.
Lesson 5: TCP/IP 3-Way Handshake
/html/tcp-ip-3-way-handshake-process
Free HTML lesson covering TCP/IP 3-Way Handshake with interactive checks in English, Hinglish, and Hindi.
Lesson 6: Anatomy of an HTTP Request
/html/anatomy-of-http-request-headers-verbs
Free HTML lesson covering Anatomy of an HTTP Request with interactive checks in English, Hinglish, and Hindi.
Lesson 7: Anatomy of an HTTP Response
/html/http-response-status-codes-explained
Free HTML lesson covering Anatomy of an HTTP Response with interactive checks in English, Hinglish, and Hindi.
Lesson 8: Anatomy of a URL
/html/how-to-read-url-query-parameters-path
Free HTML lesson covering Anatomy of a URL with interactive checks in English, Hinglish, and Hindi.
Lesson 9: How Browsers Render HTML (DOM)
/html/how-browser-renders-html-dom-tree
Free HTML lesson covering How Browsers Render HTML (DOM) with interactive checks in English, Hinglish, and Hindi.
Lesson 10: Introduction to Browser DevTools
/html/how-to-use-chrome-developer-tools-elements
Free HTML lesson covering Introduction to Browser DevTools with interactive checks in English, Hinglish, and Hindi.
Lesson 11: The <!DOCTYPE html> Declaration
/html/doctype-html5-declaration-syntax
Free HTML lesson covering The <!DOCTYPE html> Declaration with interactive checks in English, Hinglish, and Hindi.
Lesson 12: The <html> Root Element
/html/html-root-element-lang-attribute
Free HTML lesson covering The <html> Root Element with interactive checks in English, Hinglish, and Hindi.
Lesson 13: The <head> Container
/html/html-head-container-metadata
Free HTML lesson covering The <head> Container with interactive checks in English, Hinglish, and Hindi.
Lesson 14: The <title> Element
/html/html-title-element-seo-importance
Free HTML lesson covering The <title> Element with interactive checks in English, Hinglish, and Hindi.
Lesson 15: Character Encoding with <meta charset="UTF-8">
/html/html-meta-charset-utf8-encoding
Free HTML lesson covering Character Encoding with <meta charset="UTF-8"> with interactive checks in English, Hinglish, and Hindi.
Lesson 16: Responsive Viewport Configuration
/html/responsive-viewport-meta-tag-mobile
Free HTML lesson covering Responsive Viewport Configuration with interactive checks in English, Hinglish, and Hindi.
Lesson 17: Adding Favicons
/html/adding-favicons-link-rel-icon
Free HTML lesson covering Adding Favicons with interactive checks in English, Hinglish, and Hindi.
Lesson 18: Linking CSS Stylesheets
/html/linking-external-css-stylesheets-link
Free HTML lesson covering Linking CSS Stylesheets with interactive checks in English, Hinglish, and Hindi.
Lesson 19: Internal CSS with the <style> Tag
/html/internal-css-styles-style-tag
Free HTML lesson covering Internal CSS with the <style> Tag with interactive checks in English, Hinglish, and Hindi.
Lesson 20: Script Insertion with <script>
/html/script-tag-insert-javascript-code
Free HTML lesson covering Script Insertion with <script> with interactive checks in English, Hinglish, and Hindi.
Lesson 21: The <body> Container
/html/html-body-tag-visible-content
Free HTML lesson covering The <body> Container with interactive checks in English, Hinglish, and Hindi.
Lesson 22: Heading Elements (<h1> to <h6>)
/html/html-heading-tags-h1-to-h6
Free HTML lesson covering Heading Elements (<h1> to <h6>) with interactive checks in English, Hinglish, and Hindi.
Lesson 23: The Paragraph Element (<p>)
/html/html-paragraph-tag-p-margins
Free HTML lesson covering The Paragraph Element (<p>) with interactive checks in English, Hinglish, and Hindi.
Lesson 24: Line Breaks (<br />)
/html/line-break-br-tag-text-split
Free HTML lesson covering Line Breaks (<br />) with interactive checks in English, Hinglish, and Hindi.
Lesson 25: Horizontal Rules (<hr />)
/html/horizontal-rule-hr-tag-separator
Free HTML lesson covering Horizontal Rules (<hr />) with interactive checks in English, Hinglish, and Hindi.
Lesson 26: Div Containers (<div>)
/html/div-tag-generic-block-level-container
Free HTML lesson covering Div Containers (<div>) with interactive checks in English, Hinglish, and Hindi.
Lesson 27: Span Containers (<span>)
/html/span-tag-generic-inline-container
Free HTML lesson covering Span Containers (<span>) with interactive checks in English, Hinglish, and Hindi.
Lesson 28: Blockquotes (<blockquote>)
/html/blockquote-tag-long-quotations-cite
Free HTML lesson covering Blockquotes (<blockquote>) with interactive checks in English, Hinglish, and Hindi.
Lesson 29: Inline Quotes (<q>)
/html/inline-quote-q-tag-quotation-marks
Free HTML lesson covering Inline Quotes (<q>) with interactive checks in English, Hinglish, and Hindi.
Lesson 30: Address Details (<address>)
/html/address-tag-author-contact-information
Free HTML lesson covering Address Details (<address>) with interactive checks in English, Hinglish, and Hindi.
Lesson 31: Presentational Bold (<b>) vs. Semantic Strong (<strong>)
/html/bold-b-vs-semantic-strong-tag
Free HTML lesson covering Presentational Bold (<b>) vs. Semantic Strong (<strong>) with interactive checks in English, Hinglish, and Hindi.
Lesson 32: Presentational Italic (<i>) vs. Semantic Emphasis (<em>)
/html/italic-i-vs-semantic-emphasis-em-tag
Free HTML lesson covering Presentational Italic (<i>) vs. Semantic Emphasis (<em>) with interactive checks in English, Hinglish, and Hindi.
Lesson 33: Highlighted Text (<mark>)
/html/highlight-text-mark-tag-search-results
Free HTML lesson covering Highlighted Text (<mark>) with interactive checks in English, Hinglish, and Hindi.
Lesson 34: Code Snippets (<code>)
/html/monospace-code-snippet-code-tag
Free HTML lesson covering Code Snippets (<code>) with interactive checks in English, Hinglish, and Hindi.
Lesson 35: Preformatted Text (<pre>)
/html/preformatted-text-pre-tag-spaces-tabs
Free HTML lesson covering Preformatted Text (<pre>) with interactive checks in English, Hinglish, and Hindi.
Lesson 36: Insertions (<ins>) & Deletions (<del>)
/html/insert-ins-and-delete-del-tags
Free HTML lesson covering Insertions (<ins>) & Deletions (<del>) with interactive checks in English, Hinglish, and Hindi.
Lesson 37: Strikethrough (<s>)
/html/strikethrough-s-tag-outdated-content
Free HTML lesson covering Strikethrough (<s>) with interactive checks in English, Hinglish, and Hindi.
Lesson 38: Abbreviations (<abbr>)
/html/abbreviation-abbr-tag-title-tooltip
Free HTML lesson covering Abbreviations (<abbr>) with interactive checks in English, Hinglish, and Hindi.
Lesson 39: Defining Terms (<dfn>)
/html/defining-term-dfn-tag-first-instance
Free HTML lesson covering Defining Terms (<dfn>) with interactive checks in English, Hinglish, and Hindi.
Lesson 40: Superscript (<sup>) & Subscript (<sub>)
/html/superscript-sup-and-subscript-sub-tags
Free HTML lesson covering Superscript (<sup>) & Subscript (<sub>) with interactive checks in English, Hinglish, and Hindi.
Lesson 41: Anchor Elements (<a>) & the href Attribute
/html/anchor-a-tag-href-hyperlinks
Free HTML lesson covering Anchor Elements (<a>) & the href Attribute with interactive checks in English, Hinglish, and Hindi.
Lesson 42: Absolute vs. Relative Paths
/html/absolute-vs-relative-link-paths
Free HTML lesson covering Absolute vs. Relative Paths with interactive checks in English, Hinglish, and Hindi.
Lesson 43: Parent Directory Hopping (../)
/html/parent-directory-hopping-relative-paths
Free HTML lesson covering Parent Directory Hopping (../) with interactive checks in English, Hinglish, and Hindi.
Lesson 44: Grandparent Directory Hopping (../../)
/html/grandparent-directory-hopping-double-slash
Free HTML lesson covering Grandparent Directory Hopping (../../) with interactive checks in English, Hinglish, and Hindi.
Lesson 45: Linking to Email Addresses (mailto:)
/html/email-mailto-links-anchor-tag
Free HTML lesson covering Linking to Email Addresses (mailto:) with interactive checks in English, Hinglish, and Hindi.
Lesson 46: Telephone Dialing Links (tel:)
/html/telephone-dialing-tel-links-mobile
Free HTML lesson covering Telephone Dialing Links (tel:) with interactive checks in English, Hinglish, and Hindi.
Lesson 47: Target Attributes (target="_blank")
/html/open-link-new-tab-target-blank
Free HTML lesson covering Target Attributes (target="_blank") with interactive checks in English, Hinglish, and Hindi.
Lesson 48: Link Security (rel="noopener noreferrer")
/html/link-security-rel-noopener-noreferrer
Free HTML lesson covering Link Security (rel="noopener noreferrer") with interactive checks in English, Hinglish, and Hindi.
Lesson 49: Document Hash Links (href="#id")
/html/hash-links-jump-to-page-sections
Free HTML lesson covering Document Hash Links (href="#id") with interactive checks in English, Hinglish, and Hindi.
Lesson 50: Download Attribute (force download)
/html/download-attribute-force-file-download
Free HTML lesson covering Download Attribute (force download) with interactive checks in English, Hinglish, and Hindi.
Lesson 51: The Image Element (<img>)
/html/image-src-alt-attributes-elements
Free HTML lesson covering The Image Element (<img>) with interactive checks in English, Hinglish, and Hindi.
Lesson 52: Image Sizing (width & height)
/html/image-sizing-width-height-attributes
Free HTML lesson covering Image Sizing (width & height) with interactive checks in English, Hinglish, and Hindi.
Lesson 53: Responsive Images (srcset & sizes)
/html/responsive-images-srcset-sizes-attributes
Free HTML lesson covering Responsive Images (srcset & sizes) with interactive checks in English, Hinglish, and Hindi.
Lesson 54: Art Direction with <picture> & <source>
/html/art-direction-picture-source-elements
Free HTML lesson covering Art Direction with <picture> & <source> with interactive checks in English, Hinglish, and Hindi.
Lesson 55: Lazy Loading Images (loading attribute)
/html/lazy-loading-images-loading-attribute
Free HTML lesson covering Lazy Loading Images (loading attribute) with interactive checks in English, Hinglish, and Hindi.
Lesson 56: Semantic Image Wrappers (<figure> & <figcaption>)
/html/figure-figcaption-semantic-image-wrappers
Free HTML lesson covering Semantic Image Wrappers (<figure> & <figcaption>) with interactive checks in English, Hinglish, and Hindi.
Lesson 57: Vector Graphics (<svg>)
/html/inline-vector-graphics-svg-element
Free HTML lesson covering Vector Graphics (<svg>) with interactive checks in English, Hinglish, and Hindi.
Lesson 58: Image Maps (<map> & <area>)
/html/image-maps-map-area-coordinate-tags
Free HTML lesson covering Image Maps (<map> & <area>) with interactive checks in English, Hinglish, and Hindi.
Lesson 59: Favicon Formats & Link Configurations
/html/favicon-modern-format-link-types
Free HTML lesson covering Favicon Formats & Link Configurations with interactive checks in English, Hinglish, and Hindi.
Lesson 60: Capstone Project: Responsive Photo Gallery
/html/capstone-photo-gallery-responsive
Free HTML lesson covering Capstone Project: Responsive Photo Gallery with interactive checks in English, Hinglish, and Hindi.
Lesson 61: Audio Elements (src & controls)
/html/audio-elements-src-controls-autoplay-attributes
Free HTML lesson covering Audio Elements (src & controls) with interactive checks in English, Hinglish, and Hindi.
Lesson 62: Audio Fallback Formats & Sources
/html/audio-fallback-source-format-types
Free HTML lesson covering Audio Fallback Formats & Sources with interactive checks in English, Hinglish, and Hindi.
Lesson 63: Video Elements (poster & preload)
/html/video-elements-src-poster-preload-settings
Free HTML lesson covering Video Elements (poster & preload) with interactive checks in English, Hinglish, and Hindi.
Lesson 64: Video Subtitles & Captions (<track>)
/html/video-subtitles-tracks-element
Free HTML lesson covering Video Subtitles & Captions (<track>) with interactive checks in English, Hinglish, and Hindi.
Lesson 65: External Site Embedding (<iframe> & sandbox)
/html/embedding-external-sites-iframe-sandbox
Free HTML lesson covering External Site Embedding (<iframe> & sandbox) with interactive checks in English, Hinglish, and Hindi.
Lesson 66: Plugin Insertion (<embed> & <object>)
/html/plugin-insertion-embed-object-elements
Free HTML lesson covering Plugin Insertion (<embed> & <object>) with interactive checks in English, Hinglish, and Hindi.
Lesson 67: Custom Data Attributes (data-*)
/html/custom-data-attributes-data-prefix
Free HTML lesson covering Custom Data Attributes (data-*) with interactive checks in English, Hinglish, and Hindi.
Lesson 68: Iframe Security & Permission Policies
/html/iframe-communication-security-headers
Free HTML lesson covering Iframe Security & Permission Policies with interactive checks in English, Hinglish, and Hindi.
Lesson 69: HTML5 Geolocation Semantic Structure
/html/html5-native-geolocation-api-details
Free HTML lesson covering HTML5 Geolocation Semantic Structure with interactive checks in English, Hinglish, and Hindi.
Lesson 70: Capstone Project: Media Showcase Layout
/html/capstone-interactive-video-player
Free HTML lesson covering Capstone Project: Media Showcase Layout with interactive checks in English, Hinglish, and Hindi.
Lesson 71: Unordered Lists (<ul> and <li>)
/html/unordered-lists-ul-li-bullet-points
Free HTML lesson covering Unordered Lists (<ul> and <li>) with interactive checks in English, Hinglish, and Hindi.
Lesson 72: Ordered Lists (<ol> and <li>)
/html/ordered-lists-ol-li-numbered-steps
Free HTML lesson covering Ordered Lists (<ol> and <li>) with interactive checks in English, Hinglish, and Hindi.
Lesson 73: Ordered Lists Start & Reversed Attributes
/html/ordered-list-start-reversed-indexing
Free HTML lesson covering Ordered Lists Start & Reversed Attributes with interactive checks in English, Hinglish, and Hindi.
Lesson 74: Definition Lists (<dl>, <dt>, and <dd>)
/html/description-lists-dl-dt-dd-glossary
Free HTML lesson covering Definition Lists (<dl>, <dt>, and <dd>) with interactive checks in English, Hinglish, and Hindi.
Lesson 75: Tables Rows & Cells (<tr>, <td>, <th>)
/html/table-container-grid-rows-columns
Free HTML lesson covering Tables Rows & Cells (<tr>, <td>, <th>) with interactive checks in English, Hinglish, and Hindi.
Lesson 76: Table Column Spanning (colspan & rowspan)
/html/table-colspan-merge-columns
Free HTML lesson covering Table Column Spanning (colspan & rowspan) with interactive checks in English, Hinglish, and Hindi.
Lesson 77: Table Structured Sections (<thead>, <tbody>, <tfoot>)
/html/table-thead-tbody-tfoot-semantics
Free HTML lesson covering Table Structured Sections (<thead>, <tbody>, <tfoot>) with interactive checks in English, Hinglish, and Hindi.
Lesson 78: Table Column Groups (<colgroup> & <col>)
/html/table-column-groups-colgroup-col-widths
Free HTML lesson covering Table Column Groups (<colgroup> & <col>) with interactive checks in English, Hinglish, and Hindi.
Lesson 79: Table Borders & Spacing Layouts
/html/table-borders-cellpadding-cellspacing
Free HTML lesson covering Table Borders & Spacing Layouts with interactive checks in English, Hinglish, and Hindi.
Lesson 80: Capstone Project: Dynamic Pricing Grid
/html/capstone-weekly-schedule-pricing-grid
Free HTML lesson covering Capstone Project: Dynamic Pricing Grid with interactive checks in English, Hinglish, and Hindi.
Lesson 81: Form Action & Method (processing basics)
/html/form-action-method-attributes-processing
Free HTML lesson covering Form Action & Method (processing basics) with interactive checks in English, Hinglish, and Hindi.
Lesson 82: Form Labels (for attribute linkage)
/html/form-labeling-for-attribute-linkage
Free HTML lesson covering Form Labels (for attribute linkage) with interactive checks in English, Hinglish, and Hindi.
Lesson 83: Text & Password Inputs (type="text" & "password")
/html/text-password-inputs-type-attributes
Free HTML lesson covering Text & Password Inputs (type="text" & "password") with interactive checks in English, Hinglish, and Hindi.
Lesson 84: Radio Buttons (type="radio")
/html/radio-buttons-grouping-name-attribute
Free HTML lesson covering Radio Buttons (type="radio") with interactive checks in English, Hinglish, and Hindi.
Lesson 85: Checkboxes (type="checkbox")
/html/checkboxes-prechecked-multiple-selections
Free HTML lesson covering Checkboxes (type="checkbox") with interactive checks in English, Hinglish, and Hindi.
Lesson 86: Dropdown Select Lists (<select> and <option>)
/html/dropdown-select-lists-option-attributes
Free HTML lesson covering Dropdown Select Lists (<select> and <option>) with interactive checks in English, Hinglish, and Hindi.
Lesson 87: Multi-line Input (<textarea>)
/html/multiline-textarea-rows-cols-settings
Free HTML lesson covering Multi-line Input (<textarea>) with interactive checks in English, Hinglish, and Hindi.
Lesson 88: Buttons (type="submit", "reset", "button")
/html/buttons-submit-button-reset-types
Free HTML lesson covering Buttons (type="submit", "reset", "button") with interactive checks in English, Hinglish, and Hindi.
Lesson 89: Binding Input Labels (<label> wrapping)
/html/binding-input-labels-label-container
Free HTML lesson covering Binding Input Labels (<label> wrapping) with interactive checks in English, Hinglish, and Hindi.
Lesson 90: Form Groups (<fieldset> and <legend>)
/html/form-groups-fieldset-legend-elements
Free HTML lesson covering Form Groups (<fieldset> and <legend>) with interactive checks in English, Hinglish, and Hindi.
Lesson 91: Form Field Required Validation
/html/form-validation-required-maxlength-minlength
Free HTML lesson covering Form Field Required Validation with interactive checks in English, Hinglish, and Hindi.
Lesson 92: Regex Pattern Matching (pattern attribute)
/html/regex-pattern-matching-validation
Free HTML lesson covering Regex Pattern Matching (pattern attribute) with interactive checks in English, Hinglish, and Hindi.
Lesson 93: HTML5 Numeric Ranges (type="number" & "range")
/html/html5-numeric-ranges-type-number-range
Free HTML lesson covering HTML5 Numeric Ranges (type="number" & "range") with interactive checks in English, Hinglish, and Hindi.
Lesson 94: Progress Indicators (<progress>) & Meter Gauges (<meter>)
/html/progress-indicators-meter-gauges
Free HTML lesson covering Progress Indicators (<progress>) & Meter Gauges (<meter>) with interactive checks in English, Hinglish, and Hindi.
Lesson 95: Autocomplete Data Lists (<datalist>)
/html/autocomplete-datalist-input-suggestions
Free HTML lesson covering Autocomplete Data Lists (<datalist>) with interactive checks in English, Hinglish, and Hindi.
Lesson 96: Collapsible Accordions (<details> and <summary>)
/html/collapsible-accordions-details-summary
Free HTML lesson covering Collapsible Accordions (<details> and <summary>) with interactive checks in English, Hinglish, and Hindi.
Lesson 97: Native Modals & Popups (<dialog>)
/html/native-modals-dialog-showmodal-methods
Free HTML lesson covering Native Modals & Popups (<dialog>) with interactive checks in English, Hinglish, and Hindi.
Lesson 98: Web Components Templates (<template> and <slot>)
/html/web-components-template-slot-elements
Free HTML lesson covering Web Components Templates (<template> and <slot>) with interactive checks in English, Hinglish, and Hindi.
Lesson 99: Canvas Graphics (<canvas>)
/html/canvas-graphics-draw-shapes-context
Free HTML lesson covering Canvas Graphics (<canvas>) with interactive checks in English, Hinglish, and Hindi.
Lesson 100: Capstone Project: Complete Semantic Portfolio
/html/capstone-portfolio-layout-page
Free HTML lesson covering Capstone Project: Complete Semantic Portfolio with interactive checks in English, Hinglish, and Hindi.