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 Suite	Test Count
Compositing and Blending Level 1 CR Test Suite	53	Run Tests	Review Results
CSS Box Alignment Module Level 3 CR Test Suite	330	Run Tests	Review Results
CSS Animations Module Level 1 CR Test Suite	88	Run Tests	Review Results
CSS Backgrounds and Borders Module Level 3 CR Test Suite	622	Run Tests	Review Results
CSS Fragmentation Module Level 3 CR Test Suite	11	Run Tests	Review Results
CSS Cascading and Inheritance Level 3 CR Test Suite	102	Run Tests	Review Results
CSS Color Module Level 3 Conformance Test Suite	76	Run Tests	Review Results
CSS Color Module Level 4 CR Test Suite	76	Run Tests	Review Results
CSS Conditional Rules Module Level 3 CR Test Suite	87	Run Tests	Review Results
CSS Counter Styles Level 3 CR Test Suite	193	Run Tests	Review Results
CSS Exclusions Module Level 1 CR Test Suite	11	Run Tests	Review Results
CSS Flexible Box Layout Module Level 1 CR Test Suite	717	Run Tests	Review Results
CSS Fonts Module Level 3 CR Test Suite	475	Run Tests	Review Results
CSS Fonts Module Level 4 CR Test Suite	33	Run Tests	Review Results
CSS Generated Content for Paged Media Level 3 CR Test Suite	20	Run Tests	Review Results
CSS Grid Layout Module Level 1 CR Test Suite	398	Run Tests	Review Results
CSS Images Module Level 3 CR Test Suite	204	Run Tests	Review Results
CSS Masking Level 1 CR Test Suite	158	Run Tests	Review Results
CSS Multi-column Layout Module Level 1 CR Test Suite	155	Run Tests	Review Results
CSS Paged Media Module Level 3 CR Test Suite	78	Run Tests	Review Results
CSS Pseudo-Elements Module Level 4 Test Suite	13	Run Tests	Review Results
CSS Regions Module Level 1 CR Test Suite	291	Run Tests	Review Results
CSS Rhythmic Sizing Module Level 1 CR Test Suite	8	Run Tests	Review Results
CSS Ruby Layout Module Level 1 CR Test Suite	15	Run Tests	Review Results
CSS Scoping Module Level 1 CR Test Suite	18	Run Tests	Review Results
CSS Shapes Module Level 1 CR Test Suite	286	Run Tests	Review Results
CSS Speech Module Level 1 CR Test Suite	7	Run Tests	Review Results
CSS Style Attributes Level 1 CR Test Suite	16	Run Tests	Review Results
CSS Text Module Level 3 CR Test Suite	861	Run Tests	Review Results
CSS Text Decoration Module Level 3 CR Test Suite	147	Run Tests	Review Results
CSS Transforms Module Level 1 CR Test Suite	959	Run Tests	Review Results
CSS Transitions Module Level 1 CR Test Suite	79	Run Tests	Review Results
CSS Basic User Interface Module Level 3 CR Test Suite	238	Run Tests	Review Results
CSS Basic User Interface Module Level 4 CR Test Suite	84	Run Tests	Review Results
CSS Values and Units Module Level 3 CR Test Suite	107	Run Tests	Review Results
CSS Custom Properties Level 1 CR Test Suite	221	Run Tests	Review Results
CSS Will Change Module Level 1 CR Test Suite	19	Run Tests	Review Results
CSS Writing Modes Module Level 3 Alpha 1 Test Suite	589	Run Tests	Review Results
CSS Writing Modes Module Level 3 CR Test Suite	1105	Run Tests	Review Results
CSS 2.1 Conformance Test Suite	10333	Run Tests	Review Results
CSS 2.2 CR Test Suite	52	Run Tests	Review Results
CSS Object Model Level 1 CR Test Suite	38	Run Tests	Review Results
CSSOM View Module Level 1 Test Suite	23	Run Tests	Review Results
Filter Effects Level 1 CR Test Suite	37	Run Tests	Review Results
Geometry Interfaces Module Level 1 CR Test Suite	9	Run Tests	Review Results
Media Queries Level 3 Conformance Test Suite	25	Run Tests	Review Results
Selectors Level 3 Conformance Test Suite	78	Run Tests	Review Results
Selectors Level 4 CR Test Suite	68	Run Tests	Review Results
WOFF 2.0 CR Test Suite	302	Run Tests	Review Results

You can review the testing results for the following locked test suites:

Test Suite	Test Count
CSS 2.1 CR Test Suite	9418	Review Results

Please make sure your client is configured to:

• Default black text on a white background.
• No minimum font size.
• Print background colors and images.

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.