| CR | CSS Flexible Box Layout Module | 7 | 8 | 3 | 0 | 15 | 47 | 56.4
|
| | CSS Transforms | 10 | 5 | 2 | 1 | 18 | 51 | 51.0
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| | CSS Animations | 9 | 4 | 3 | 1 | 17 | 46 | 48.7
|
| | CSS Conditional Rules Module L3 | 6 | 7 | 3 | 0 | 16 | 41 | 46.1
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| | CSS Transitions | 9 | 5 | 2 | 2 | 18 | 46 | 46.0
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| | CSS Grid Layout | 5 | 9 | 3 | 0 | 17 | 41 | 43.4
|
| | CSS Text Module | 5 | 8 | 4 | 0 | 17 | 40 | 42.4
|
| CR | CSS Multi-column Layout Module | 4 | 12 | 2 | 0 | 18 | 42 | 42.0
|
| | CSS Regions | 9 | 3 | 3 | 3 | 18 | 42 | 42.0
|
| | CSS Fonts | 4 | 8 | 4 | 0 | 16 | 36 | 40.5
|
| CR | CSS Backgrounds and Borders Module L3 | 3 | 12 | 2 | 0 | 17 | 38 | 40.2
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| | CSS Positioned Layout Module | 5 | 3 | 7 | 0 | 15 | 33 | 39.6
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| CR | CSS Image Values and Replaced Content | 3 | 10 | 5 | 0 | 18 | 37 | 37.0
|
| | CSS Exclusions and Shapes | 5 | 6 | 4 | 2 | 17 | 34 | 36.0
|
| | CSS Fragmentation Module | 3 | 7 | 6 | 0 | 16 | 32 | 36.0
|
| | Alternative Grid Layout Proposal by Peter Linss | 2 | 5 | 5 | 0 | 12 | 23 | 34.5
|
| | CSS Writing Modes | 3 | 9 | 5 | 1 | 18 | 34 | 34.0
|
| | CSS Paged Media Module | 3 | 5 | 8 | 0 | 16 | 30 | 33.8
|
| CR | CSS Values and Units Module L3 | 1 | 11 | 4 | 0 | 16 | 30 | 33.8
|
| | CSS Intrinsic & Extrinsic Sizing Module | 3 | 6 | 6 | 1 | 16 | 29 | 32.6
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| | CSS Overflow Module | 1 | 9 | 6 | 0 | 16 | 28 | 31.5
|
| | Selectors LEVEL 4 | 2 | 5 | 8 | 0 | 15 | 26 | 31.2
|
| | CSS Device Adaptation | 3 | 8 | 5 | 2 | 18 | 31 | 31.0
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| | Ruby | 3 | 3 | 7 | 1 | 14 | 24 | 30.9
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| | Media Queries LEVEL 4 | 3 | 7 | 5 | 2 | 17 | 29 | 30.7
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| | CSS Box Alignment Module | 1 | 8 | 7 | 0 | 16 | 27 | 30.4
|
| | CSS Line Layout | 1 | 7 | 8 | 0 | 16 | 26 | 29.3
|
| | CSS Line Grid Module | 1 | 7 | 9 | 0 | 17 | 27 | 28.6
|
| | CSS Basic Box Model | 2 | 3 | 11 | 0 | 16 | 25 | 28.1
|
| | CSS Image Values and Replaced Content Module LEVEL 4 | 1 | 8 | 5 | 2 | 16 | 23 | 25.9
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| | CSS Syntax | 2 | 2 | 9 | 1 | 14 | 20 | 25.7
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| | CSS Pagination Templates Module | 2 | 4 | 7 | 2 | 15 | 21 | 25.2
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| | CSS Generated Content for Paged Media Module | 3 | 4 | 8 | 3 | 18 | 25 | 25.0
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| | CSS OM | 2 | 4 | 9 | 2 | 17 | 23 | 24.4
|
| | CSS Grid Template Layout | 3 | 3 | 5 | 4 | 14 | 19 | 24.4
|
| | CSS OM View Module | 1 | 7 | 8 | 2 | 18 | 24 | 24.0
|
| | CSS Mobile Text Size Adjustment Module | 1 | 8 | 5 | 3 | 17 | 22 | 23.3
|
| | CSS Counter Styles | 1 | 5 | 6 | 2 | 14 | 18 | 23.1
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| | CSS UI | 2 | 2 | 12 | 2 | 18 | 22 | 22.0
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| | CSS Background and Borders LEVEL 4 | 2 | 3 | 7 | 3 | 15 | 18 | 21.6
|
| | CSS Lists and Counters Module | 0 | 4 | 10 | 1 | 15 | 17 | 20.4
|
| | CSS Text Decoration Module | 0 | 3 | 11 | 1 | 15 | 16 | 19.2
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| CR | CSS Style Attribute | 1 | 3 | 8 | 3 | 15 | 15 | 18.0
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| | CSS Text LEVEL 4 | 1 | 4 | 6 | 4 | 15 | 14 | 16.8
|
| | CSS Pseudo-Elements LEVEL 4 | 1 | 4 | 5 | 4 | 14 | 13 | 16.7
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| | CSS OM Values Module | 0 | 2 | 10 | 2 | 14 | 12 | 15.4
|
| | CSS Hierarchies | 2 | 2 | 6 | 6 | 16 | 12 | 13.5
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| | CSS Color Correction | 0 | 2 | 9 | 3 | 14 | 10 | 12.9
|
| CR | CSS Speech | 1 | 2 | 4 | 9 | 16 | 3 | 3.4 |