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WPT

This page compares scores on the Web Platform Tests across web engines, using the latest master runs from wpt.fyi and Blitz's own test runner.

wpt / css / css-borders / border-shape

Spec: CSS Borders and Box Decorations ↗

Runs: Chrome 158.0.8110.0 (wpt@831ff48a8, 2026-10-18) | Firefox 160.0a1 (wpt@b58866519, 2026-10-18) | Safari 254 preview (wpt@470a7adf8, 2026-10-18) | Ladybird 1.0-ecff1 (wpt@850b36a56, 2026-10-18) | Servo Servo 0.7 (wpt@df642c414, 2026-10-17) | Blitz fb8d6c15e (wpt@cd1d8aa5b, 2026-10-17)

Score history

Percentage of subtests passing over time, one master run per day. Every engine's percentage is relative to the same denominator: the total number of subtests known to any engine in the latest runs (so lines are not distorted by tests being added to WPT, and an engine that skips tests is not flattered for it).

1 month3 months6 months1 year2 years4 yearsAll time
0%20%40%60%80%100%Nov 2025Dec 2025Jan 2026Feb 2026Mar 2026Apr 2026May 2026Jun 2026Jul 2026Aug 2026Sep 2026Oct 2026ChromeFirefoxSafariLadybirdServoBlitz

Sort: alphabetical | by subtest count

AreaChromeFirefoxSafariLadybirdServoBlitz
Total94.0%158/16819.6%33/16817.2%29/16819.0%32/16817.2%29/16811.3%19/168
crashtests100.0%1/1100.0%1/1100.0%1/1100.0%1/1100.0%1/1100.0%1/1
TestChromeFirefoxSafariLadybirdServoBlitz
Total94.0%157/16719.1%32/16716.7%28/16718.5%31/16716.7%28/16710.7%18/167
border-shape-animation.html100/1000/1000/1000/1000/1000/100
border-shape-background-origin-border-box.htmlPASSFAILFAILFAILFAILFAIL
border-shape-circle-extent-keywords.htmlPASSPASSPASSPASSPASSPASS
border-shape-circle-hit-test-overflow-clip-margin.htmlPASSPASSFAILPASSPASSSKIP
border-shape-circle-hit-test-overflow-clip.htmlPASSPASSPASSPASSPASSSKIP
border-shape-circle-hit-test-siblings.html3/32/32/32/32/30/3
border-shape-circle-hit-test.htmlPASSFAILFAILFAILFAILSKIP
border-shape-clips-background.htmlPASSFAILFAILFAILFAILFAIL
border-shape-collapsed-shape-clips-background.htmlPASSFAILFAILFAILFAILFAIL
border-shape-combined-shadow.htmlPASSPASSPASSPASSPASSPASS
border-shape-double-shape-default.htmlPASSPASSPASSPASSPASSPASS
border-shape-dynamic-color.htmlPASSPASSPASSPASSPASSPASS
border-shape-ellipse-corner-keywords.tentative.htmlPASSPASSPASSPASSPASSPASS
border-shape-ellipse-extent-keywords.htmlPASSPASSPASSPASSPASSPASS
border-shape-geometry-box.htmlPASSFAILFAILFAILFAILFAIL
border-shape-half-border-box-default.htmlPASSPASSPASSPASSPASSPASS
border-shape-hit-test-overflow.htmlPASSPASSPASSPASSPASSSKIP
border-shape-ignore-radius-computed.htmlPASSPASSPASSFAILFAILPASS
border-shape-ignore-radius.htmlPASSFAILFAILFAILFAILFAIL
border-shape-inner-outer.htmlPASSFAILFAILFAILFAILFAIL
border-shape-inset-shadow-blur.htmlPASSPASSPASSPASSPASSPASS
border-shape-inset-shadow-negative-spread.htmlPASSPASSPASSPASSPASSPASS
border-shape-inset-shadow.htmlPASSFAILFAILFAILFAILFAIL
border-shape-outline-auto-forms.htmlPASSFAILFAILFAILFAILFAIL
border-shape-outline-auto-with-border.htmlPASSFAILFAILFAILFAILFAIL
border-shape-outline-auto.htmlPASSFAILFAILFAILFAILFAIL
border-shape-outline-double-path.htmlPASSFAILFAILFAILFAILFAIL
border-shape-outline-double-shape.htmlPASSFAILFAILFAILFAILFAIL
border-shape-outline-double.htmlPASSFAILFAILFAILFAILFAIL
border-shape-outline-invalidation.htmlPASSPASSPASSPASSPASSPASS
border-shape-outline-offset.htmlPASSFAILFAILFAILFAILFAIL
border-shape-outline-with-border-double-ellipse.htmlFAILFAILFAILFAILFAILFAIL
border-shape-outline-with-border-ellipse.htmlPASSFAILFAILFAILFAILFAIL
border-shape-outline-with-border.htmlPASSFAILFAILFAILFAILFAIL
border-shape-outline.htmlFAILFAILFAILFAILFAILFAIL
border-shape-overflow-child-clip.htmlFAILPASSPASSPASSPASSPASS
border-shape-overflow-clip-margin-hit-test-ref-boxes.html3/33/31/33/33/32/3
border-shape-overflow-clip-margin-hit-test.htmlPASSPASSFAILPASSPASSFAIL
border-shape-overflow-replaced-canvas.htmlFAILPASSPASSPASSPASSFAIL
border-shape-overflow-replaced-iframe.htmlFAILPASSPASSPASSPASSPASS
border-shape-overflow-replaced-img.htmlFAILPASSPASSPASSPASSPASS
border-shape-overflow-replaced-self.htmlPASSPASSPASSPASSPASSPASS
border-shape-overflow-solid-background.htmlPASSFAILFAILFAILFAILFAIL
border-shape-overflow.htmlPASSFAILFAILFAILFAILFAIL
border-shape-polygon-miter-limit.htmlPASSFAILFAILFAILFAILFAIL
border-shape-replaced-hit-test.htmlPASSFAILFAILFAILFAILSKIP
border-shape-shadow-blur.htmlFAILFAILFAILFAILFAILFAIL
border-shape-shadow-circle.htmlPASSFAILFAILFAILFAILFAIL
border-shape-shadow-ellipse.htmlPASSFAILFAILFAILFAILFAIL
border-shape-shadow-inset-blur.htmlFAILFAILFAILFAILFAILFAIL
border-shape-shadow-negative-spread.htmlPASSPASSPASSPASSFAILFAIL
border-shape-shadow-semitransparent.htmlPASSPASSPASSPASSFAILFAIL
border-shape-shadow-transparent.htmlPASSFAILFAILFAILFAILFAIL
border-shape-shadow.htmlPASSPASSPASSPASSFAILFAIL
border-shape-shape-arc-miter-limit.htmlPASSFAILFAILFAILFAILFAIL
border-shape-stacking-context-hit-test.html6/63/63/63/63/60/6
border-shape-stroke-from-border.htmlFAILFAILFAILFAILFAILFAIL
border-shape-stroke-invalidation.htmlPASSPASSPASSPASSPASSPASS
border-shape-two-shapes-shadow.htmlFAILFAILFAILFAILFAILFAIL