A complete platform for modern teams. Ship with confidence using our semantic-first approach to web development.
Write meaningful markup that browsers, screen readers, and search engines understand natively.
Elements auto-register to grid areas based on their type. No classes, no configuration.
Pure CSS layouts that work without a single line of JavaScript. Progressive enhancement built in.
CSS custom properties for colors, spacing, typography, and more. Consistent design at every level.
Components respond to their container size, not the viewport. True component-level responsiveness.
Automatic dark mode support via CSS custom properties. One line to toggle the entire theme.
Join thousands of developers building with semantic HTML and CSS.