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CSS Test Harness

This is a development version of a test harness for conducting CSS conformance testing.

More information about the CSS Conformance Test Suites can be found on the CSS Working Group Wiki.

You can run tests or review the testing results for the following test suites:
Test SuiteTest Count
Compositing and Blending Level 1 CR Test Suite54Run TestsReview Results
CSS Box Alignment Module Level 3 CR Test Suite88Run TestsReview Results
CSS Animations Module Level 1 CR Test Suite88Run TestsReview Results
CSS Backgrounds and Borders Module Level 3 CR Test Suite603Run TestsReview Results
CSS Fragmentation Module Level 3 CR Test Suite11Run TestsReview Results
CSS Cascading and Inheritance Level 3 CR Test Suite7Run TestsReview Results
CSS Color Module Level 3 Conformance Test Suite76Run TestsReview Results
CSS Color Module Level 4 CR Test Suite55Run TestsReview Results
CSS Conditional Rules Module Level 3 CR Test Suite87Run TestsReview Results
CSS Containment Module Level 1 CR Test Suite9Run TestsReview Results
CSS Counter Styles Level 3 CR Test Suite157Run TestsReview Results
CSS Exclusions Module Level 1 CR Test Suite11Run TestsReview Results
CSS Flexible Box Layout Module Level 1 CR Test Suite682Run TestsReview Results
CSS Fonts Module Level 3 CR Test Suite388Run TestsReview Results
CSS Generated Content for Paged Media Level 3 CR Test Suite20Run TestsReview Results
CSS Grid Layout Module Level 1 CR Test Suite129Run TestsReview Results
CSS Images Module Level 3 CR Test Suite197Run TestsReview Results
CSS Masking Level 1 CR Test Suite150Run TestsReview Results
CSS Multi-column Layout Module Level 1 CR Test Suite170Run TestsReview Results
CSS Paged Media Module Level 3 CR Test Suite78Run TestsReview Results
CSS Pseudo-Elements Module Level 4 Test Suite5Run TestsReview Results
CSS Regions Module Level 1 CR Test Suite291Run TestsReview Results
CSS Rhythmic Sizing Module Level 1 CR Test Suite8Run TestsReview Results
CSS Ruby Layout Module Level 1 CR Test Suite15Run TestsReview Results
CSS Scoping Module Level 1 CR Test Suite17Run TestsReview Results
CSS Shapes Module Level 1 CR Test Suite286Run TestsReview Results
CSS Speech Module Level 1 CR Test Suite7Run TestsReview Results
CSS Style Attributes Level 1 CR Test Suite16Run TestsReview Results
CSS Text Module Level 3 CR Test Suite903Run TestsReview Results
CSS Text Decoration Module Level 3 CR Test Suite138Run TestsReview Results
CSS Transforms Module Level 1 CR Test Suite1056Run TestsReview Results
CSS Transitions Module Level 1 CR Test Suite92Run TestsReview Results
CSS Basic User Interface Module Level 3 CR Test Suite283Run TestsReview Results
CSS Values and Units Module Level 3 CR Test Suite106Run TestsReview Results
CSS Custom Properties Level 1 CR Test Suite178Run TestsReview Results
CSS Will Change Module Level 1 CR Test Suite19Run TestsReview Results
CSS Writing Modes Module Level 3 Alpha 1 Test Suite589Run TestsReview Results
CSS Writing Modes Module Level 3 CR Test Suite1157Run TestsReview Results
CSS 2.1 Conformance Test Suite10326Run TestsReview Results
CSS 2.2 CR Test Suite23Run TestsReview Results
CSS Object Model Level 1 CR Test Suite32Run TestsReview Results
CSSOM View Module Level 1 Test Suite25Run TestsReview Results
Filter Effects Level 1 CR Test Suite39Run TestsReview Results
Geometry Interfaces Module Level 1 CR Test Suite7Run TestsReview Results
Media Queries Level 3 Conformance Test Suite25Run TestsReview Results
Selectors Level 3 Conformance Test Suite56Run TestsReview Results
Selectors Level 4 CR Test Suite28Run TestsReview Results
WOFF 2.0 CR Test Suite303Run TestsReview Results
You can review the testing results for the following locked test suites:
Test SuiteTest Count
CSS 2.1 CR Test Suite9418Review Results

Please make sure your client is configured to:

Note that many of the tests require the Ahem font to be installed. Some of the font-related tests also require special fonts. Without the proper fonts installed, results are of no value.

Some tests have additional requirements, which will be noted by the harness interface.

Please send comments, questions, and error reports to public-css-testsuite@w3.org2-932795601