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CSSOM Constants

This page lists all standardized CSSOM constants in CSS to avoid the creation of conflicting specs. Vendor-specific features and experimental implementations must use numbers greater than 1000: the 0-1000 range is reserved by the CSS Working Group.

0 - Not assigned; was UNKNOWN_RULE in DOM-Level-2-Style
1 STYLE_RULE CSSOM
2 - Not assigned; was CHARSET_RULE in DOM-Level-2-Style
3 IMPORT_RULE CSSOM
4 MEDIA_RULE CSSOM
5 FONT_FACE_RULE CSSOM
6 PAGE_RULE CSSOM
7 KEYFRAMES_RULE css3-animations
8 KEYFRAME_RULE css3-animations
9 - likely COLOR_PROFILE, SVG/CSS4
10 NAMESPACE_RULE CSSOM
11 VARIABLE_RULE css-variables
12 SUPPORTS_RULE css3-conditional
13 DOCUMENT_RULE css3-conditional
14 FONT_FEATURE_VALUES_RULE css3-fonts

CSSOM Vendor Constants

Vendors can list their proprietary constants below to avoid cross-vendor overlap.

 
spec/cssom-constants.1318385613.txt.gz · Last modified: 2014/12/09 15:48 (external edit)
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