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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-shadow

Spec: CSS Shadow ↗

Runs: Chrome 155.0.8039.0 (wpt@6ec9fd59f, 2026-09-03) | Firefox 157.0a1 (wpt@6ec9fd59f, 2026-09-03) | Safari 251 preview (wpt@5ce815a83, 2026-08-27) | Ladybird 1.0-795e1 (wpt@7e3d005d7, 2026-09-03) | Servo Servo 0.6 (wpt@09159dcb3, 2026-09-02) | Blitz 188486089 (wpt@a95401e4e, 2026-09-02)

Sort areas: alphabetical | by subtest count

AreaChromeFirefoxSafariLadybirdServoBlitz
Total93.4%456/48890.6%442/48888.5%432/48876.2%372/48871.5%349/4882.5%12/488
part99.5%186/18793.6%175/18794.7%177/18778.6%147/18771.1%133/1870.0%0/187
TestChromeFirefoxSafariLadybirdServoBlitz
chrome-1492368-crash.htmlPASSPASSPASSPASSPASSPASS
css-scoping-shadow-assigned-node-with-before-after.htmlPASSPASSPASSPASSPASSFAIL
css-scoping-shadow-assigned-node-with-rules.htmlPASSPASSPASSPASSPASSFAIL
css-scoping-shadow-dynamic-remove-style-detached.htmlPASSPASSPASSPASSPASSFAIL
css-scoping-shadow-host-functional-rule.htmlPASSPASSPASSPASSPASSFAIL
css-scoping-shadow-host-namespace.htmlPASSFAILFAILFAILFAILFAIL
css-scoping-shadow-host-rule.htmlPASSPASSPASSPASSPASSFAIL
css-scoping-shadow-host-with-before-after.htmlPASSPASSPASSPASSPASSFAIL
css-scoping-shadow-invisible-slot.htmlPASSPASSPASSPASSPASSFAIL
css-scoping-shadow-nested-slot-display-override.htmlPASSPASSPASSPASSPASSFAIL
css-scoping-shadow-root-hides-children.htmlPASSPASSPASSPASSPASSFAIL
css-scoping-shadow-slot-display-override.htmlPASSPASSPASSPASSPASSFAIL
css-scoping-shadow-slot-fallback.htmlPASSPASSPASSPASSPASSFAIL
css-scoping-shadow-slot-style.htmlPASSPASSPASSPASSPASSFAIL
css-scoping-shadow-slot.htmlPASSPASSPASSPASSPASSFAIL
css-scoping-shadow-slotted-nested.htmlPASSPASSPASSPASSPASSFAIL
css-scoping-shadow-slotted-rule.htmlPASSPASSPASSPASSPASSFAIL
css-scoping-shadow-with-outside-rules.htmlPASSPASSPASSPASSPASSFAIL
css-scoping-shadow-with-rules-no-style-leak.htmlPASSPASSPASSPASSPASSFAIL
css-scoping-shadow-with-rules.htmlPASSPASSPASSPASSPASSFAIL
font-face-001.htmlFAILFAILFAILFAILFAILFAIL
font-face-002.htmlPASSPASSPASSPASSPASSFAIL
font-face-003.htmlPASSPASSPASSPASSPASSFAIL
font-face-004.htmlPASSPASSPASSPASSPASSFAIL
font-face-005.htmlFAILFAILFAILFAILFAILFAIL
font-face-006.htmlPASSPASSPASSPASSPASSFAIL
font-face-007.htmlFAILFAILPASSFAILFAILFAIL
font-face-008.htmlFAILFAILPASSFAILFAILFAIL
font-face-009.htmlFAILFAILPASSFAILFAILFAIL
has-slotted-001.htmlPASSPASSFAILFAILFAILFAIL
has-slotted-002.htmlPASSPASSPASSPASSPASSFAIL
has-slotted-003.htmlPASSPASSFAILFAILFAILFAIL
has-slotted-changing-001.html5/55/51/51/51/50/5
has-slotted-changing-002.html3/33/30/30/30/30/3
has-slotted-flattened-001.htmlPASSPASSFAILFAILFAILFAIL
has-slotted-flattened-002.htmlPASSPASSPASSPASSPASSFAIL
has-slotted-flattened-003.htmlPASSPASSFAILFAILFAILFAIL
has-slotted-flattened-004.htmlPASSPASSPASSPASSPASSFAIL
has-slotted-functional-001.tentative.htmlFAILFAILFAILFAILFAILFAIL
has-slotted-functional-002.tentative.htmlPASSPASSPASSPASSPASSFAIL
has-slotted-functional-003.tentative.htmlPASSPASSPASSPASSPASSFAIL
has-slotted-functional-004.tentative.htmlFAILFAILFAILFAILFAILFAIL
has-slotted-functional-005.tentative.htmlPASSPASSPASSPASSPASSFAIL
has-slotted-functional-006.tentative.htmlFAILFAILFAILFAILFAILFAIL
has-slotted-functional-007.tentative.htmlFAILFAILFAILFAILFAILFAIL
has-slotted-functional-changing-001.tentative.htmlFAILFAILFAILFAILFAILFAIL
has-slotted-functional-changing-002.tentative.htmlFAILFAILFAILFAILFAILFAIL
has-slotted-functional-changing-003.tentative.htmlFAILFAILFAILFAILFAILFAIL
has-slotted-functional-changing-004.tentative.htmlFAILFAILFAILFAILFAILFAIL
has-slotted-functional-flattened-001.tentative.htmlFAILFAILFAILFAILFAILFAIL
has-slotted-functional-flattened-002.tentative.htmlPASSPASSPASSPASSPASSFAIL
has-slotted-functional-flattened-003.tentative.htmlPASSPASSPASSPASSPASSFAIL
has-slotted-functional-flattened-004.tentative.htmlFAILFAILFAILFAILFAILFAIL
has-slotted-functional-flattened-005.tentative.htmlPASSPASSPASSPASSPASSFAIL
has-slotted-functional-flattened-006.tentative.htmlFAILFAILFAILFAILFAILFAIL
has-slotted-manual-assignment.html4/44/40/40/40/40/4
has-slotted-query-selector.html8/88/80/80/80/80/8
host-context-parsing.html7/75/75/75/75/70/7
host-context-specificity-001.htmlPASSFAILFAILFAILFAILFAIL
host-context-specificity-002.htmlPASSFAILFAILFAILFAILFAIL
host-context-specificity-003.htmlPASSFAILFAILFAILFAILFAIL
host-defined.htmlPASSPASSPASSPASSPASSFAIL
host-descendant-001.htmlPASSPASSPASSPASSPASSFAIL
host-descendant-002.htmlPASSPASSPASSPASSPASSFAIL
host-descendant-003.htmlPASSPASSPASSPASSPASSFAIL
host-descendant-invalidation.htmlPASSPASSPASSPASSPASSFAIL
host-dom-001.htmlPASSPASSPASSPASSPASSFAIL
host-functional-descendant-invalidation.htmlPASSPASSPASSPASSPASSFAIL
host-has-001.tentative.htmlFAILPASSPASSPASSFAILFAIL
host-has-002.tentative.htmlFAILFAILPASSPASSFAILFAIL
host-has-003.tentative.htmlFAILPASSPASSPASSFAILFAIL
host-has-internal-001.htmlPASSFAILPASSPASSFAILFAIL
host-has-internal-002.htmlPASSFAILPASSPASSFAILFAIL
host-has-internal-003.htmlPASSFAILPASSPASSFAILFAIL
host-has-internal-004.htmlPASSFAILPASSPASSFAILFAIL
host-in-host-context-selector.htmlPASSPASSPASSPASSPASSPASS
host-in-host-selector.htmlPASSFAILPASSPASSFAILPASS
host-is-001.htmlPASSPASSPASSPASSPASSFAIL
host-is-002.htmlPASSPASSPASSPASSPASSFAIL
host-is-003.htmlPASSPASSPASSPASSPASSFAIL
host-is-004.htmlPASSPASSPASSPASSPASSFAIL
host-is-005.htmlPASSPASSPASSPASSPASSFAIL
host-is-006.htmlPASSPASSPASSPASSPASSFAIL
host-is-featureless.htmlPASSPASSPASSPASSPASSFAIL
host-multiple-001.htmlPASSPASSPASSPASSPASSFAIL
host-multiple-002.htmlPASSPASSFAILPASSPASSFAIL
host-multiple-003.htmlPASSPASSPASSPASSPASSFAIL
host-multiple-004.htmlPASSFAILFAILPASSFAILFAIL
host-multiple-005.htmlPASSPASSPASSPASSPASSFAIL
host-nested-001.htmlPASSPASSPASSPASSPASSFAIL
host-not-001.htmlPASSPASSPASSPASSPASSFAIL
host-parsing.html7/77/77/77/77/70/7
host-slotted-001.htmlPASSPASSPASSPASSPASSFAIL
host-specificity-002.htmlPASSPASSPASSPASSPASSFAIL
host-specificity-003.htmlPASSPASSPASSPASSPASSFAIL
host-specificity.htmlPASSPASSPASSPASSPASSFAIL
host-with-default-namespace-001.htmlPASSPASSPASSPASSPASSFAIL
idlharness.html12/1212/1212/1212/1212/120/12
keyframes-001.htmlPASSPASSPASSFAILFAILFAIL
keyframes-002.htmlFAILFAILPASSPASSFAILFAIL
keyframes-003.htmlPASSPASSPASSPASSFAILFAIL
keyframes-004.htmlPASSPASSPASSPASSFAILFAIL
keyframes-005.htmlPASSFAILPASSFAILFAILFAIL
keyframes-006.htmlPASSPASSPASSPASSPASSFAIL
reslot-text-inheritance.htmlPASSPASSPASSPASSPASSFAIL
same-rules-bug-2044746-crash.htmlPASSPASSPASSPASSPASSPASS
same-rules-bug-2044746.htmlPASSPASSPASSPASSPASSFAIL
scope-pseudo-in-shadow.htmlPASSPASSPASSPASSPASSFAIL
scoped-reference-animation-001.htmlPASSPASSPASSPASSPASSPASS
scoped-reference-animation-002.htmlPASSFAILFAILPASSPASSFAIL
shadow-assign-dynamic-001.htmlPASSPASSPASSPASSPASSFAIL
shadow-at-import.htmlPASSPASSPASSPASSPASSFAIL
shadow-cascade-order-001.html64/6464/6464/6464/6464/640/64
shadow-directionality-001.tentative.htmlPASSPASSPASSPASSFAILFAIL
shadow-directionality-002.tentative.htmlPASSPASSPASSPASSFAILFAIL
shadow-disabled-sheet-001.htmlPASSPASSPASSPASSPASSFAIL
shadow-fallback-dynamic-001.htmlPASSPASSPASSPASSPASSFAIL
shadow-fallback-dynamic-002.htmlPASSPASSPASSPASSPASSFAIL
shadow-fallback-dynamic-003.htmlPASSPASSPASSPASSPASSFAIL
shadow-fallback-dynamic-004.htmlPASSPASSPASSPASSPASSPASS
shadow-fallback-dynamic-005.htmlPASSPASSPASSPASSPASSPASS
shadow-host-removal-invalidation.htmlPASSPASSPASSPASSFAILFAIL
shadow-host-style-sharing.html6/66/66/66/62/60/6
shadow-host-with-before-after.htmlPASSPASSPASSPASSPASSFAIL
shadow-link-rel-stylesheet-no-style-leak.htmlPASSPASSPASSPASSPASSFAIL
shadow-link-rel-stylesheet.htmlPASSPASSPASSPASSPASSFAIL
shadow-multiple-links.htmlPASSPASSPASSPASSPASSFAIL
shadow-reassign-dynamic-001.htmlPASSPASSPASSPASSPASSFAIL
shadow-reassign-dynamic-002.htmlPASSPASSPASSPASSPASSFAIL
shadow-reassign-dynamic-003.html2/22/22/22/22/20/2
shadow-reassign-dynamic-004.htmlPASSPASSPASSPASSPASSFAIL
shadow-reassign-dynamic-005-crash.htmlPASSPASSPASSPASSPASSPASS
shadow-reassign-dynamic-006.htmlPASSPASSPASSPASSPASSPASS
shadow-root-insert-into-document.htmlPASSPASSPASSPASSPASSFAIL
shadow-shared-style-cache-001.htmlPASSPASSPASSPASSFAILFAIL
slot-non-html-display-value.htmlPASSPASSPASSFAILFAILPASS
slotted-details-content.htmlPASSPASSPASSFAILFAILFAIL
slotted-file-selector-button.htmlPASSPASSPASSFAILFAILPASS
slotted-has-001.htmlFAILPASSPASSPASSFAILFAIL
slotted-has-002.htmlFAILPASSPASSPASSFAILFAIL
slotted-has-003.htmlFAILPASSPASSPASSFAILFAIL
slotted-has-004.htmlFAILPASSPASSPASSFAILFAIL
slotted-invalidation.htmlPASSPASSPASSPASSPASSFAIL
slotted-link.htmlPASSPASSPASSPASSPASSFAIL
slotted-matches.htmlPASSPASSPASSPASSPASSFAIL
slotted-nested.html2/22/22/22/22/20/2
slotted-parsing.html29/3634/3635/3614/3628/360/36
slotted-placeholder.htmlPASSPASSPASSFAILFAILPASS
slotted-slot.htmlPASSPASSPASSPASSPASSFAIL
slotted-specificity-002.htmlPASSPASSPASSPASSPASSFAIL
slotted-specificity.htmlPASSPASSPASSPASSPASSFAIL
slotted-user-agent-part-invalidation.htmlPASSPASSPASSFAILFAILFAIL
slotted-with-pseudo-element.htmlPASSPASSPASSFAILFAILFAIL
stylesheet-title-001.htmlPASSPASSPASSPASSPASSFAIL
stylesheet-title-002.htmlPASSPASSPASSPASSPASSFAIL
svg-id-ref-001.htmlPASSPASSPASSFAILPASSFAIL
whitespace-crash-001.htmlPASSPASSPASSPASSPASSFAIL