CSS Reference

A reference for all of CSS that ships in browsers today: every property, selector, at-rule, descriptor, function and value type that at least one of Chrome, Firefox or Safari supports. Search it, browse by section, or use the A–Z index. For how to build things with the framework, see Components.

Properties →

All 580 shipped properties, in twenty themes from the box model to SVG.

Selectors →

Basic selectors, combinators, and every shipped pseudo-class and pseudo-element.

At-rules →

Every shipped at-rule with its descriptors, plus every media and container feature.

Functions →

calc() and the math functions, colour, gradients, transforms, filters, shapes, easing and references like var().

Types →

The value types every property draws on, with every unit, named colour, system colour and CSS-wide keyword.

A–Z →

One alphabetical index of everything above, from @ through to Z.