CSS Animations
47 Animation along a circular path
CSS Backgrounds & Borders
3 Flexible background positioning
30 Extending the clickable area
35 Interactive image comparison
CSS Backgrounds & Borders Level 4
dev.w3.org/csswg/css-backgrounds-4
CSS Basic User Interface
35 Interactive image comparison
CSS Box Alignment
CSS Flexible Box Layout
CSS Fonts
CSS Image Values
35 Interactive image comparison
CSS Image Values Level 4
CSS Intrinsic & Extrinsic Sizing
CSS Masking
CSS Text
CSS Text Level 4
CSS Text Decoration
CSS Transforms
35 Interactive image comparison
47 Animation along a circular path
CSS Transitions
CSS Values & Units
3 Flexible background positioning
Compositing and Blending
35 Interactive image comparison
Filter Effects
35 Interactive image comparison
Fullscreen API
Scalable Vector Graphics
Selectors