CSS Reference is a free visual guide to CSS. It features the most popular properties, and explains them with illustrated and animated examples.
CSS Reference is a free visual guide to CSS that documents commonly used CSS properties through illustrated and animated examples. Properties are organized into collections such as animations, backgrounds, box model, flexbox, CSS grid, positioning, transitions, and typography, each covering related sub-properties (for example, border, margin, and padding variants under box model, or grid-template and grid-column variants under CSS grid).
The site also offers a 44-page ebook, "CSS in 44 minutes," and links to a companion site, HTML Reference, for HTML documentation in the same format.
It is aimed at developers and designers learning or looking up CSS properties who benefit from visual, example-based explanations rather than plain text documentation.
Yes, CSS Reference is free and the site states it always will be.
It covers the most popular CSS properties, organized into collections such as Flexbox, CSS Grid, Animations, Transitions, Typography, Box model, Backgrounds, and Positioning.
Each property is explained with illustrated and animated examples.
Yes, the site links to a sister website called HTML Reference.
Yes, a 44-page ebook titled "CSS in 44 minutes" is available.
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