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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-inline / initial-letter

Spec: CSS Inline Layout ↗

Runs: Chrome 157.0.8081.0 (wpt@d1be42980, 2026-10-01) | Firefox 159.0a1 (wpt@d1be42980, 2026-10-01) | Safari 253 preview (wpt@3ba906187, 2026-10-01) | Ladybird 1.0-44d79 (wpt@1b81534c4, 2026-09-30) | Servo Servo 0.7 (wpt@336cfcec7, 2026-10-01) | Blitz 89e5e615a (wpt@375cf2548, 2026-10-01)

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
Total96.0%95/9927.3%27/9918.2%18/9918.2%18/9918.2%18/9918.2%18/99
crashtests100.0%1/1100.0%1/1100.0%1/1100.0%1/1100.0%1/1100.0%1/1
TestChromeFirefoxSafariLadybirdServoBlitz
Initial-letter-breaking-rtl.htmlPASSFAILFAILFAILFAILFAIL
Initial-letter-breaking-vlr.htmlPASSFAILFAILFAILFAILFAIL
Initial-letter-breaking-vrl.htmlPASSFAILFAILFAILFAILFAIL
Initial-letter-breaking.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-block-position-drop-over-ruby-tall.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-block-position-drop-over-ruby.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-block-position-drop-under-ruby-tall.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-block-position-drop-under-ruby.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-block-position-margins-rtl.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-block-position-margins-slr.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-block-position-margins-srl.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-block-position-margins-vlr.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-block-position-margins-vrl.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-block-position-margins.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-block-position-raise-over-ruby-tall.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-block-position-raise-over-ruby.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-block-position-raise-under-ruby-tall.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-block-position-raise-under-ruby.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-breaking-slr.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-breaking-srl.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-computed.html8/84/80/80/80/80/8
initial-letter-drop-initial-rtl.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-drop-initial-slr.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-drop-initial-srl.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-drop-initial-vlr.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-drop-initial-vrl.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-drop-initial.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-float-001-rtl.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-float-001-slr.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-float-001-srl.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-float-001-vlr.htmlFAILFAILFAILFAILFAILFAIL
initial-letter-float-001-vrl.htmlFAILFAILFAILFAILFAILFAIL
initial-letter-float-001.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-float-002.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-float-003.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-float-004.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-float-005.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-indentation-rtl.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-indentation.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-invalid.html16/1616/1616/1616/1616/1616/16
initial-letter-layout-text-decoration-underline.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-popover.htmlPASSPASSPASSPASSPASSPASS
initial-letter-raise-initial-slr.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-raise-initial-srl.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-raise-initial-vlr.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-raise-initial-vrl.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-raise-initial.htmlNOT RUNNOT RUNNOT RUNNOT RUNNOT RUNFAIL
initial-letter-raise-initial.html?class=PASSFAILFAILFAILFAILNOT RUN
initial-letter-raise-initial.html?class=no-ascentPASSFAILFAILFAILFAILNOT RUN
initial-letter-raise-initial.html?class=no-descentPASSFAILFAILFAILFAILNOT RUN
initial-letter-raise-initial.html?class=rtlPASSFAILFAILFAILFAILNOT RUN
initial-letter-raised-sunken-caps-raise.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-raised-sunken-caps-sunken.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-short-para-initial-letter-clears.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-short-para-initial-letter-wraps.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-sign-function.htmlPASSPASSFAILFAILFAILFAIL
initial-letter-sunk-initial-slr.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-sunk-initial-srl.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-sunk-initial-vlr.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-sunk-initial-vrl.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-sunk-initial.htmlNOT RUNNOT RUNNOT RUNNOT RUNNOT RUNFAIL
initial-letter-sunk-initial.html?class=PASSFAILFAILFAILFAILNOT RUN
initial-letter-sunk-initial.html?class=no-ascentPASSFAILFAILFAILFAILNOT RUN
initial-letter-sunk-initial.html?class=no-descentPASSFAILFAILFAILFAILNOT RUN
initial-letter-sunk-initial.html?class=rtlPASSFAILFAILFAILFAILNOT RUN
initial-letter-valid.html8/84/80/80/80/80/8
initial-letter-with-first-line.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-with-tab-rtl.htmlPASSFAILFAILFAILFAILFAIL
initial-letter-with-tab.htmlPASSFAILFAILFAILFAILFAIL