CSS
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CSS
This is the Mozilla wiki home page for Cascading Style Sheets (CSS).
Platform priorities
The following CSS specs/proposal are a priority for the Platform.
- CSS Masking (CR), https://bugzilla.mozilla.org/show_bug.cgi?id=686281
- CSS Alignment (WD), https://bugzilla.mozilla.org/show_bug.cgi?id=1105570
- calc() for numbers / unit algebra (CR/WD), https://bugzilla.mozilla.org/show_bug.cgi?id=594933
- Background-position x/y
- Flexbox fixes (eg. 812687 )
- CSS Houdini, Houdini Implementation Plan development
- CSS Shapes (CR) - https://bugzilla.mozilla.org/show_bug.cgi?id=1098939
- CSS handling of HTML5 <details> <summary> - https://bugzilla.mozilla.org/show_bug.cgi?id=591737
- CSS Backdrop-filter - https://bugzilla.mozilla.org/show_bug.cgi?id=1178765
- CSS Media Queries 4 work (negation, etc) - https://bugzilla.mozilla.org/show_bug.cgi?id=1035774
- CSS multicol a11y bug hack removal
- CSS Font Loading Improvements, Multiple bugs e.g., https://bugzilla.mozilla.org/show_bug.cgi?id=1157064
- CSS clip-path
- CSS Initial-letter
- CSS Transform properties
- ...
properties
Please add subpages for each (unprefixed) CSS property in alphabetical order.
- ...
- overflow
- ...
- text-overflow
- ...
in development
CSS properties which have not yet made it to a Candidate Recommendation (or later), or are only implemented in the wild in prefixed form.
new pseudo-classes
- ...
- :autofill
- ...
new properties
- ...
- text-size-adjust (-moz-, -ms-, -webkit-)
- ...