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Build websites that look great on any device size using modern responsive design techniques.
Responsive design ensures your website adapts to different screen sizes. The foundation is the viewport meta tag, fluid grids, flexible images, and media queries.
Mobile-first design starts with styles for small screens, then adds complexity for larger screens using min-width media queries. This approach is more efficient and ensures a good mobile experience.
CSS Grid and Flexbox make responsive layouts easier. Grid's auto-fit and minmax() create fluid grids without media queries. Flexbox's flex-wrap handles wrapping naturally.
Use relative units (rem, em, %, vw, vh) instead of fixed pixels. The clamp() function provides fluid typography: font-size: clamp(1rem, 2.5vw, 2rem). Container queries let components respond to their container size.
Test responsive designs in CompileZ's HTML editor. Resize the preview panel to see how your layout adapts.
Understand the key differences between Flexbox and CSS Grid and learn when each layout system is the right choice.
Build robust forms with built-in HTML5 validation and custom JavaScript validation.
Create smooth, performant animations using CSS transitions and keyframe animations.