Click here to download the Blitz Browser!

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 / cssom-view

Spec: CSSOM View ↗

Runs: Chrome 158.0.8110.0 (wpt@d6615bd69, 2026-10-18) | Firefox 160.0a1 (wpt@b58866519, 2026-10-18) | Safari 254 preview (wpt@470a7adf8, 2026-10-18) | Ladybird 1.0-44fe0 (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
Total93.8%2476/263886.6%2287/263873.8%1949/263875.1%1982/263855.9%1477/263837.1%981/2638
parsing100.0%7/7100.0%7/7100.0%7/7100.0%7/742.8%3/7100.0%7/7
TestChromeFirefoxSafariLadybirdServoBlitz
Total93.8%2469/263186.6%2280/263173.8%1942/263175.0%1975/263156.0%1474/263137.0%974/2631
CaretPosition-001.html2/22/22/22/22/22/2
DOMRectList.html2/22/22/22/22/21/2
Element-currentCSSZoom.html2/22/22/20/20/20/2
GetBoundingRect.htmlPASSPASSPASSPASSPASSFAIL
HTMLBody-ScrollArea_quirksmode.html10/1010/1010/1010/109/103/10
HTMLImageElement-x-and-y-ignore-transforms.htmlPASSPASSPASSPASSPASSPASS
MediaQueryList-addListener-handleEvent.html4/66/64/64/64/60/6
MediaQueryList-addListener-removeListener.html8/88/88/88/88/80/8
MediaQueryList-change-event-matches-value.htmlPASSPASSPASSPASSPASSSKIP
MediaQueryList-extends-EventTarget-interop.html7/88/88/88/88/80/8
MediaQueryList-extends-EventTarget.html7/77/77/77/77/70/7
MediaQueryListEvent.html6/66/66/66/66/60/6
Screen-pixelDepth-Screen-colorDepth001.html2/22/22/22/22/20/2
add-background-attachment-fixed-during-smooth-scroll.htmlPASSPASSPASSPASSPASSFAIL
background-change-during-smooth-scroll.htmlPASSPASSPASSPASSPASSSKIP
checkVisibility.html17/1717/1716/1714/170/170/17
client-props-inline-list-item.htmlPASSPASSPASSFAILPASSPASS
client-props-input.htmlPASSPASSFAILFAILFAILFAIL
client-props-root-display-none-crash.htmlPASSPASSPASSPASSPASSPASS
client-props-root.htmlPASSPASSPASSPASSPASSPASS
client-props-zoom.html2/22/22/22/22/21/2
client-scroll-props-input.html2/22/20/20/20/20/2
cssom-geometryutils-connected-callback.html2/20/20/20/20/20/2
cssom-geometryutils-convertPointFromNode.html20/200/200/200/200/200/20
cssom-geometryutils-convertQuadFromNode.html18/180/180/180/180/180/18
cssom-geometryutils-convertRectFromNode.html18/180/180/180/180/180/18
cssom-geometryutils-cross-origin-path.https.htmlPASSFAILFAILFAILFAILSKIP
cssom-geometryutils-element-types.html41/411/411/411/411/411/41
cssom-geometryutils-fragmentation.html4/40/40/40/40/40/4
cssom-geometryutils-getBoxQuads-options.html17/170/170/170/170/170/17
cssom-geometryutils-lifecycle.html4/40/40/40/40/40/4
cssom-geometryutils-same-origin-iframe.html2/20/20/20/20/20/2
cssom-geometryutils-shadow-dom.html2/20/20/20/20/20/2
cssom-geometryutils-text.html2/20/20/20/20/20/2
cssom-geometryutils-transforms.html10/101/101/100/100/100/10
cssom-getBoundingClientRect-001.html2/22/22/22/22/22/2
cssom-getBoundingClientRect-002.htmlPASSPASSPASSPASSPASSPASS
cssom-getBoundingClientRect-003.html2/22/22/22/20/20/2
cssom-getBoundingClientRect-vertical-rl.htmlPASSPASSPASSPASSPASSPASS
cssom-getBoxQuads-001.html6/60/60/60/60/60/6
cssom-getBoxQuads-002.htmlPASSFAILFAILFAILFAILFAIL
cssom-getClientRects-002.htmlPASSPASSPASSPASSPASSPASS
cssom-getClientRects.htmlPASSPASSPASSPASSPASSPASS
cssom-view-img-attributes-001.html4/44/44/44/40/40/4
cssom-view-window-screen-interface.html6/66/66/66/66/60/6
detached-element-geometry.window.html13/1313/1313/1313/1313/1313/13
devicePixelRatio-undisplayed-iframe.tentative.htmlPASSPASSPASSPASSPASSFAIL
dom-element-scroll.html4/44/44/44/44/44/4
element-scroll-arguments.html12/126/126/1212/126/126/12
element-scroll-promise-after-removal.html4/50/50/50/50/50/5
element-scroll-promise-interruption.html14/140/140/140/140/140/14
element-scroll-promises.html24/240/240/240/240/240/24
elementFromPoint-001.htmlPASSPASSPASSPASSPASSPASS
elementFromPoint-002.htmlPASSPASSPASSPASSPASSPASS
elementFromPoint-003.htmlPASSPASSPASSPASSPASSPASS
elementFromPoint-dynamic-anon-box.htmlPASSPASSPASSPASSPASSPASS
elementFromPoint-ellipsis-in-inline-box.html3/33/33/33/33/33/3
elementFromPoint-float-in-relative.htmlPASSPASSPASSPASSPASSPASS
elementFromPoint-float-in-table.html2/22/22/22/22/22/2
elementFromPoint-list-001.html10/1010/1010/108/1010/105/10
elementFromPoint-mixed-font-sizes.htmlPASSPASSPASSPASSPASSFAIL
elementFromPoint-negative-z-index-inline-overflow-clip.htmlPASSPASSPASSPASSPASSPASS
elementFromPoint-negative-z-index-inline.html8/88/84/87/87/85/8
elementFromPoint-parameters.html4/44/44/44/44/40/4
elementFromPoint-subpixel.html4/44/44/44/44/42/4
elementFromPoint-ua-shadowroot-crash.htmlPASSPASSPASSPASSPASSPASS
elementFromPoint-visibility-hidden-resizer.htmlPASSPASSPASSPASSPASSPASS
elementFromPoint.html11/1110/1111/1110/119/115/11
elementFromPosition.html11/1611/1611/1611/1611/1615/16
elementScroll-002.html4/44/44/44/44/44/4
elementScroll.html8/88/88/88/88/88/8
elementsFromPoint-iframes.html2/22/22/22/22/20/2
elementsFromPoint-inline-htb-ltr.htmlPASSPASSPASSPASSPASSPASS
elementsFromPoint-inline-htb-rtl.htmlPASSPASSPASSPASSPASSPASS
elementsFromPoint-inline-nested.htmlPASSPASSPASSPASSPASSPASS
elementsFromPoint-inline-vlr-ltr.htmlPASSPASSPASSFAILPASSPASS
elementsFromPoint-inline-vlr-rtl.htmlPASSPASSPASSFAILFAILFAIL
elementsFromPoint-inline-vrl-ltr.htmlPASSPASSPASSPASSFAILFAIL
elementsFromPoint-inline-vrl-rtl.htmlPASSPASSPASSPASSFAILPASS
elementsFromPoint-invalid-cases.html3/33/33/33/33/33/3
elementsFromPoint-shadowroot.html3/33/33/31/33/30/3
elementsFromPoint-simple.html6/66/66/64/66/60/6
elementsFromPoint-svg-text.html4/43/42/41/40/40/4
elementsFromPoint-svg.html6/62/65/62/60/60/6
elementsFromPoint-table.html4/44/44/40/40/40/4
elementsFromPoint.html9/99/99/98/98/95/9
getBoundingClientRect-content-visibility-hidden.html4/44/42/42/44/40/4
getBoundingClientRect-empty-inline-002.html4/44/44/43/44/42/4
getBoundingClientRect-empty-inline.htmlPASSPASSPASSFAILPASSFAIL
getBoundingClientRect-newline.htmlPASSFAILPASSFAILFAILFAIL
getBoundingClientRect-scroll.html6/66/66/66/66/64/6
getBoundingClientRect-shy.html12/1212/128/125/121/120/12
getBoundingClientRect-svg.html3/32/33/30/33/30/3
getBoundingClientRect-zoom.html5/55/55/52/52/54/5
getClientRects-br-htb-ltr.htmlPASSPASSPASSFAILPASSFAIL
getClientRects-br-htb-rtl.htmlPASSPASSPASSFAILPASSFAIL
getClientRects-br-vlr-ltr.htmlPASSPASSPASSFAILPASSFAIL
getClientRects-br-vlr-rtl.htmlPASSPASSPASSFAILFAILFAIL
getClientRects-br-vrl-ltr.htmlPASSPASSPASSFAILFAILFAIL
getClientRects-br-vrl-rtl.htmlPASSPASSPASSFAILFAILFAIL
getClientRects-inline-atomic-child.html3/33/33/32/33/30/3
getClientRects-inline-inline-child.htmlPASSPASSPASSPASSPASSPASS
getClientRects-inline-with-block-child.htmlPASSPASSPASSFAILPASSFAIL
getClientRects-inline.htmlPASSPASSPASSPASSPASSPASS
getClientRects-zoom.html5/55/55/52/52/54/5
historical.html2/22/22/22/22/22/2
htmlelement-offset-width-001.htmlPASSPASSPASSPASSPASSPASS
idlharness.html412/417343/417341/417361/417287/417161/417
image-x-y-zoom.html2/22/22/21/20/20/2
inheritance.html2/22/22/22/20/22/2
interrupt-hidden-smooth-scroll.html2/22/22/22/21/20/2
long_scroll_composited.htmlPASSPASSPASSPASSPASSPASS
matchMedia-display-none-iframe.html2/22/22/22/22/20/2
matchMedia.html10/1010/1010/1010/1010/100/10
mouseEvent-offsetXY-svg.html2/22/22/20/20/20/2
mouseEvent.html2/33/32/32/33/30/3
negativeMargins.html2/22/21/21/21/21/2
offsetParent-block-in-inline.htmlPASSPASSPASSPASSPASSPASS
offsetParent-body-and-html.html6/66/66/66/66/62/6
offsetParent-fixed.html2/22/22/22/21/21/2
offsetParent_element_test.html2/22/22/22/21/20/2
offsetTop-offsetLeft-nested-offsetParents.htmlPASSPASSPASSFAILPASSFAIL
offsetTop-offsetLeft-with-zoom.html2/22/21/21/21/20/2
offsetTopLeft-border-box.html28/2828/2828/2825/2828/2828/28
offsetTopLeft-empty-inline-offset.html6/66/66/60/66/60/6
offsetTopLeft-empty-inline.html3/33/33/30/33/30/3
offsetTopLeft-inline.htmlPASSPASSPASSPASSPASSPASS
offsetTopLeft-leading-space-inline.html3/33/33/30/33/30/3
offsetTopLeft-table-caption.htmlPASSPASSPASSFAILPASSFAIL
offsetTopLeft-trailing-space-inline.html3/33/33/30/31/30/3
offsetTopLeftInScrollableParent.html8/88/88/88/88/88/8
outer-svg.html2/22/22/21/22/22/2
overflow-hidden-smooth-scroll-crash.htmlPASSPASSPASSPASSPASSPASS
position-sticky-root-scroller-with-scroll-behavior.htmlPASSPASSPASSFAILPASSFAIL
pt-to-px-width.htmlPASSPASSPASSPASSPASSPASS
range-bounding-client-rect-rtl-ligature-split.htmlPASSPASSPASSFAILFAILFAIL
range-bounding-client-rect-with-display-contents.htmlFAILPASSFAILFAILFAILFAIL
range-bounding-client-rect-with-nested-text.htmlPASSPASSPASSPASSFAILFAIL
range-bounding-client-rect-with-shadow-dom.html4/44/44/43/43/40/4
range-client-rects-surrogate-indexing.htmlPASSFAILPASSFAILFAILFAIL
resize-event-on-initial-layout-001.htmlPASSPASSPASSPASSPASSPASS
resize-event-on-initial-layout-002.htmlPASSPASSPASSPASSPASSPASS
resizeTo-negative.htmlPASSPASSPASSPASSPASSFAIL
screen-detached-frame.htmlPASSPASSPASSFAILFAILFAIL
screenLeftTop.html2/22/22/22/22/20/2
scroll-back-to-initial-position.html2/22/22/20/22/22/2
scroll-behavior-default-css.html3/33/33/33/31/31/3
scroll-behavior-element.html39/3939/3939/3938/3920/390/39
scroll-behavior-main-frame-root.html40/4040/4040/4018/4021/400/40
scroll-behavior-main-frame-window.html28/2828/2828/2827/2815/280/28
scroll-behavior-scrollintoview-nested.html2/22/22/22/20/20/2
scroll-behavior-smooth-after-hiding-iframe.htmlPASSPASSPASSPASSFAILFAIL
scroll-behavior-smooth-navigation.html3/33/32/32/31/30/3
scroll-behavior-smooth-positions.html23/2323/2323/2319/2322/230/23
scroll-behavior-smooth.html3/33/33/33/30/30/3
scroll-behavior-subframe-root.html40/4040/4040/4018/4021/400/40
scroll-behavior-subframe-window.html28/2828/2828/2827/2815/280/28
scroll-clamp-after-transform-shrinks-overflow.htmlPASSPASSPASSPASSPASSFAIL
scroll-no-layout-box.htmlPASSPASSPASSPASSPASSPASS
scroll-offsets-fractional-zoom.html72/7272/7271/7272/7272/7272/72
scroll-overflow-clip-quirks-001.htmlPASSPASSPASSPASSPASSFAIL
scroll-overflow-clip-quirks-002.htmlPASSPASSPASSPASSPASSFAIL
scroll-zoom.html3/33/33/32/32/31/3
scrollIntoView-align-scrollport-covering-child.htmlPASSPASSPASSPASSPASSFAIL
scrollIntoView-container.html5/53/55/55/55/50/5
scrollIntoView-fixed-outside-of-viewport.htmlPASSPASSPASSPASSFAILFAIL
scrollIntoView-fixed.html2/43/42/42/43/40/4
scrollIntoView-horizontal-partially-visible.htmlPASSPASSPASSFAILPASSFAIL
scrollIntoView-horizontal-tb-writing-mode-and-rtl-direction.html9/99/99/90/90/90/9
scrollIntoView-horizontal-tb-writing-mode.html9/99/99/99/99/90/9
scrollIntoView-iframes.html3/43/44/43/44/40/4
scrollIntoView-inline-image.htmlPASSFAILPASSPASSPASSPASS
scrollIntoView-multiple-nested.html4/44/44/44/44/40/4
scrollIntoView-multiple.html4/44/44/44/44/40/4
scrollIntoView-nearest-oversized-element.htmlPASSPASSPASSPASSPASSFAIL
scrollIntoView-nearest-visible-element.htmlPASSPASSPASSPASSPASSPASS
scrollIntoView-root-overflow-clip.html2/22/22/22/21/22/2
scrollIntoView-scrollMargin.html3/33/33/33/30/30/3
scrollIntoView-scrollPadding.html3/33/33/33/30/30/3
scrollIntoView-scrolling-box-with-large-border.htmlPASSPASSPASSPASSPASSFAIL
scrollIntoView-scrolling-container.htmlPASSPASSPASSPASSFAILFAIL
scrollIntoView-shadow.htmlPASSPASSPASSPASSPASSFAIL
scrollIntoView-should-treat-slot-as-scroll-container.htmlPASSPASSPASSPASSPASSFAIL
scrollIntoView-sideways-lr-writing-mode-and-rtl-direction.html9/99/99/90/90/90/9
scrollIntoView-sideways-lr-writing-mode.html9/99/99/90/90/90/9
scrollIntoView-sideways-rl-writing-mode-and-rtl-direction.html9/99/99/90/90/90/9
scrollIntoView-sideways-rl-writing-mode.html9/99/99/90/90/90/9
scrollIntoView-smooth.html4/44/44/44/40/40/4
scrollIntoView-stuck.tentative.htmlFAILPASSFAILFAILPASSPASS
scrollIntoView-svg-shape.html3/33/33/33/30/30/3
scrollIntoView-then-scrollBy.htmlPASSPASSFAILPASSFAILFAIL
scrollIntoView-vertical-lr-writing-mode-and-rtl-direction.html9/99/99/90/90/90/9
scrollIntoView-vertical-lr-writing-mode.html9/99/99/93/93/90/9
scrollIntoView-vertical-rl-writing-mode.html9/99/99/90/90/90/9
scrollLeft-of-scroller-with-wider-scrollbar.htmlPASSPASSPASSPASSPASSPASS
scrollLeftTop.html6/66/66/63/62/62/6
scrollParent-quirks-mode.htmlPASSFAILFAILFAILPASSFAIL
scrollParent-shadow-tree.html4/40/40/40/42/40/4
scrollParent.html12/120/120/120/1211/120/12
scrollTo-zoom.htmlPASSPASSFAILFAILPASSFAIL
scrollTop-display-change.htmlPASSPASSPASSPASSPASSPASS
scrollWidthHeight-child-border-within-padding.tentative.html5/55/55/55/55/55/5
scrollWidthHeight-contain-layout.html104/128122/12892/128122/128104/128128/128
scrollWidthHeight-flex-column-padding-001.html2/22/22/21/21/21/2
scrollWidthHeight-negative-margin-001.html4/44/44/44/44/44/4
scrollWidthHeight-negative-margin-002.html496/600600/600324/600531/600120/600144/600
scrollWidthHeight-not-scrollable-fractional-zoom.html5/55/55/55/55/55/5
scrollWidthHeight-overflow-visible-margin-collapsing.html140/140140/140140/140140/140140/140140/140
scrollWidthHeight-overflow-visible-negative-margins.html50/5050/5050/5032/5050/5020/50
scrollWidthHeight.xht12/1212/1212/1212/1212/1210/12
scrollWidthHeightWhenNotScrollable.xht10/1212/1210/1210/1210/1210/12
scrolling-no-browsing-context.htmlPASSPASSPASSPASSPASSFAIL
scrolling-quirks-vs-nonquirks.html30/3030/3030/3030/3030/300/30
scrollingElement-quirks-dynamic-001.htmlPASSPASSFAILPASSPASSPASS
scrollingElement-quirks-dynamic-002.htmlPASSPASSFAILPASSPASSPASS
scrollingElement.html5/84/84/88/88/80/8
scrollintoview-containingblock-chain.htmlPASSPASSPASSFAILPASSFAIL
scrollintoview-zero-height-item.htmlPASSFAILPASSFAILFAILFAIL
scrollintoview.html40/4040/4040/4040/4040/4040/40
smooth-scroll-in-load-event.htmlPASSPASSPASSFAILFAILSKIP
smooth-scroll-nonstop.html2/22/20/22/22/20/2
smooth-scrollIntoView-with-smooth-fragment-scroll.html2/22/22/22/22/20/2
smooth-scrollIntoView-with-unrelated-gesture-scroll.htmlPASSPASSPASSPASSPASSSKIP
subpixel-sizes-and-offsets.tentative.html12/1512/1512/156/1512/1512/15
table-border-collapse-client-width-height.htmlPASSPASSPASSFAILPASSPASS
table-border-separate-client-width-height.htmlPASSPASSPASSPASSPASSPASS
table-client-props.html11/1515/1511/154/1515/154/15
table-offset-props.html13/1312/1310/138/1313/135/13
table-scroll-props.html11/1313/1310/134/1311/134/13
table-with-border-client-width-height.htmlPASSPASSPASSFAILPASSFAIL
ttwf-js-cssomview-getclientrects-length.html3/33/33/33/33/33/3
visual-scrollIntoView-001.htmlPASSFAILFAILFAILFAILFAIL
visual-scrollIntoView-002.htmlPASSFAILFAILFAILFAILFAIL
visual-scrollIntoView-003.htmlPASSFAILFAILFAILFAILFAIL
window-screen-height-immutable.htmlPASSPASSPASSPASSPASSFAIL
window-screen-height.html3/33/33/33/33/30/3
window-screen-width-immutable.htmlPASSPASSPASSPASSPASSFAIL
window-screen-width.html3/33/33/33/33/30/3
window-scroll-arguments.html12/126/126/1212/126/126/12
window-scroll-promise-interruption.html4/40/40/40/40/40/4
window-scroll-promises.html18/180/180/180/180/180/18
window-scrollBy-display-change.htmlPASSPASSPASSPASSPASSPASS