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HTML & CSS
Master HTML5 and CSS for software engineering interviews, covering semantic markup, layout systems, responsive design, animations, accessibility, and modern CSS architecture.
What You Will Learn
- ✓HTML5 Semantics — Elements, Accessibility, SEO
- ✓CSS Box Model & Layout — Flexbox, Grid, Positioning
- ✓Responsive Design — Media Queries, Mobile-First, Fluid Typography
- ✓CSS Advanced — Animations, Transitions, Custom Properties, Pseudo-elements
- ✓Forms & Validation — Input Types, Accessibility, JS Validation
- ✓CSS Architecture — BEM, SCSS, CSS Modules, Tailwind
- ✓Browser Rendering — CSSOM, Reflow, Repaint, Critical Path
- ✓Web Accessibility — ARIA, Screen Readers, Keyboard Navigation, Color Contrast
- ✓CSS-in-JS & Modern Tools — Styled Components, Emotion, PostCSS
- ✓Interview Patterns & Common Questions
Overview
Master HTML5 and CSS for software engineering interviews, covering semantic markup, layout systems, responsive design, animations, accessibility, and modern CSS architecture.
Session 1: HTML5 Semantics
HTML semantics means choosing elements for their meaning, not their appearance. Semantic markup improves accessibility, SEO, maintainability, and default browser behaviors.
Why Semantics Matter
Screen readers announce element roles to users — a is announced as a button; a with a click handler is announced as nothing.
Search engines use heading hierarchy and landmark elements to understand page structure.
Browsers provide built-in behaviors for free — handles keyboard focus, Enter/Space activation, and touch events.
Other developers understand code intent from element choice alone.
Document Structure
Heading Hierarchy
Headings (–) create an outline of the page — like a table of contents. Rules:
One per page (the main topic)
Don't skip heading levels (h1 → h3 is wrong)
Use headings for document structure, not for visual styling (use CSS for size)
Interactive Elements
Meta Tags for SEO
Java Implementation
Python Implementation
Sample Quiz Questions
1. Which HTML element should you use for the primary navigation of a website?
Remember·Difficulty: 1/5
2. What is the total width of an element with: width: 200px, padding: 20px, border: 5px, box-sizing: content-box?
Apply·Difficulty: 2/5
3. Which property controls how flex items are distributed along the MAIN axis?
Remember·Difficulty: 1/5
+ 12 more questions available in the full app.
Related Topics
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