HTML & CSS

Modern HTML5 and CSS3 for semantic web structure and responsive styling.

When to Use

• Semantic Web Structure & Accessibility: Crafting accessible, WCAG-compliant, SEO-optimized web documents with HTML5 elements.
• Modern Responsive Layouts (CSS Grid & Flexbox): Designing fluid, adaptable screen layouts across mobile, tablet, desktop, and TV viewports.
• Component-Driven Theming (CSS Custom Properties): Implementing zero-runtime dark/light mode themes and design tokens.
• Modern CSS Features (Container Queries & :has()): Styling components based on their immediate container width and parent-child states.

Quick Start