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Status

This page documents the implementation status of various HTML and CSS features in Blitz.

CSS PropertiesHTML ElementsEventsWPT TestsWPT History

This page documents Blitz's scores on the "css" subsuite of the Web Platform Tests.

wpt / css / css-text-decor

Score history
1 month3 months6 months1 year2 years4 yearsAll time
0%20%40%60%80%100%May 2025Jul 2025Sep 2025Nov 2025Jan 2026Mar 2026May 2026Jul 2026Sep 2026css/css-text-decor

Data from commit:
ab0e30b Give form controls a UA default font-family (#940) (2026-09-25)

AreaInterop ScoreTestsTest %SubtestsSubtest %
Total38.94%(136/365)37.26%(1116/1693)65.92%
animations70.83%(0/3)0.00%(666/944)70.55%
parsing66.02%(17/31)54.84%(235/314)74.84%
text-shadow60.71%(17/28)60.71%(39/50)78.00%
invalidation62.50%(5/8)62.50%(5/8)62.50%
crashtests100.00%(7/7)100.00%(7/7)100.00%
decorating-box100.00%(1/1)100.00%(1/1)100.00%
TestSubtestsSubtest %Status
inheritance.html(10/18)55.56%FAIL
line-through-vertical.html(1/1)100.00%PASS
ruby-text-decoration-01.html(0/1)0.00%FAIL
text-combine-emphasis.html(0/1)0.00%FAIL
text-decoration-color-recalc-002.html(1/1)100.00%PASS
text-decoration-color-recalc.html(1/1)100.00%PASS
text-decoration-color-selection-pseudo-01.html(1/1)100.00%PASS
text-decoration-color.html(0/1)0.00%FAIL
text-decoration-decorating-box-001.html(1/1)100.00%PASS
text-decoration-dotted-001.html(0/1)0.00%FAIL
text-decoration-dotted-002.html(1/1)100.00%PASS
text-decoration-inset-001.html(1/1)100.00%PASS
text-decoration-inset-002.html(0/1)0.00%FAIL
text-decoration-inset-003.html(0/1)0.00%FAIL
text-decoration-inset-004.html(0/1)0.00%FAIL
text-decoration-inset-005.html(0/1)0.00%FAIL
text-decoration-inset-006.html(0/1)0.00%FAIL
text-decoration-inset-007.html(1/1)100.00%PASS
text-decoration-inset-008.html(0/1)0.00%FAIL
text-decoration-inset-009.html(0/1)0.00%FAIL
text-decoration-inset-010.html(0/1)0.00%FAIL
text-decoration-inset-011.html(0/1)0.00%FAIL
text-decoration-inset-012.html(0/1)0.00%FAIL
text-decoration-inset-013.html(0/1)0.00%FAIL
text-decoration-inset-014.html(0/1)0.00%FAIL
text-decoration-inset-015.html(1/1)100.00%PASS
text-decoration-inset-016.html(1/1)100.00%PASS
text-decoration-inset-017.html(0/1)0.00%FAIL
text-decoration-inset-018.html(0/1)0.00%FAIL
text-decoration-inset-019.html(0/1)0.00%FAIL
text-decoration-inset-020.html(0/1)0.00%FAIL
text-decoration-inset-021.html(0/1)0.00%FAIL
text-decoration-inset-022.html(0/1)0.00%FAIL
text-decoration-inset-023.html(0/1)0.00%FAIL
text-decoration-inset-024.html(1/1)100.00%PASS
text-decoration-inset-025.html(0/1)0.00%FAIL
text-decoration-inset-026.html(0/1)0.00%FAIL
text-decoration-inset-027.html(0/1)0.00%FAIL
text-decoration-inset-028.html(0/1)0.00%FAIL
text-decoration-inset-029.html(0/1)0.00%FAIL
text-decoration-inset-030.html(0/1)0.00%FAIL
text-decoration-inset-orthogonal-block-001.html(0/1)0.00%FAIL
text-decoration-inset-percentage-slice-multiline.html(0/1)0.00%FAIL
text-decoration-inset-percentage-slice.html(0/1)0.00%FAIL
text-decoration-inset-svg-fragment-001.html(1/1)100.00%PASS
text-decoration-inset-svg-fragment-002.html(1/1)100.00%PASS
text-decoration-line-010.xht(1/1)100.00%PASS
text-decoration-line-011.xht(1/1)100.00%PASS
text-decoration-line-012.xht(1/1)100.00%PASS
text-decoration-line-013.xht(1/1)100.00%PASS
text-decoration-line-grammar-error-color-001.html(1/1)100.00%PASS
text-decoration-line-recalc.html(1/1)100.00%PASS
text-decoration-line-spelling-error-001-crash.html(1/1)100.00%PASS
text-decoration-line-spelling-error-color-001.html(1/1)100.00%PASS
text-decoration-line-through-wavy-covers-whole-line-length-001.html(1/1)100.00%PASS
text-decoration-line.html(1/1)100.00%PASS
text-decoration-lines-001.html(1/1)100.00%PASS
text-decoration-overline-wavy-covers-whole-line-length-001.html(1/1)100.00%PASS
text-decoration-propagation-01.html(1/1)100.00%PASS
text-decoration-propagation-02.html(1/1)100.00%PASS
text-decoration-propagation-03.html(1/1)100.00%PASS
text-decoration-propagation-04.html(0/1)0.00%FAIL
text-decoration-propagation-05.html(0/1)0.00%FAIL
text-decoration-propagation-display-contents-002.html(1/1)100.00%PASS
text-decoration-propagation-display-contents-003.html(0/1)0.00%FAIL
text-decoration-propagation-display-contents.html(1/1)100.00%PASS
text-decoration-propagation-dynamic-001.html(0/1)0.00%FAIL
text-decoration-propagation-shadow.html(1/1)100.00%PASS
text-decoration-shorthands-001.html(1/1)100.00%PASS
text-decoration-shorthands-002.html(1/1)100.00%PASS
text-decoration-skip-ink-001.html(0/1)0.00%FAIL
text-decoration-skip-ink-002.html(0/1)0.00%FAIL
text-decoration-skip-ink-003.html(1/1)100.00%PASS
text-decoration-skip-ink-004.html(0/1)0.00%FAIL
text-decoration-skip-ink-005.html(0/1)0.00%FAIL
text-decoration-skip-ink-sidewayslr-001.html(0/1)0.00%FAIL
text-decoration-skip-ink-sidewayslr-002.html(0/1)0.00%FAIL
text-decoration-skip-ink-sidewaysrl-001.html(0/1)0.00%FAIL
text-decoration-skip-ink-sidewaysrl-002.html(0/1)0.00%FAIL
text-decoration-skip-ink-upright-001.html(0/1)0.00%FAIL
text-decoration-skip-ink-upright-002.html(0/1)0.00%FAIL
text-decoration-skip-ink-vertical-001.html(0/1)0.00%FAIL
text-decoration-skip-ink-vertical-002.html(0/1)0.00%FAIL
text-decoration-skip-ink.html(0/2)0.00%FAIL
text-decoration-skip-spaces-001.html(0/1)0.00%FAIL
text-decoration-skip-spaces-002.html(0/1)0.00%FAIL
text-decoration-skip-spaces-003.html(0/1)0.00%FAIL
text-decoration-skip-spaces-004.html(0/1)0.00%FAIL
text-decoration-skip-spaces-005.html(0/1)0.00%FAIL
text-decoration-skip-spaces-006.html(0/1)0.00%FAIL
text-decoration-skip-spaces-007.html(0/1)0.00%FAIL
text-decoration-skip-spaces-008.html(0/1)0.00%FAIL
text-decoration-skip-spaces-009.html(0/1)0.00%FAIL
text-decoration-skip-spaces-atomic-inline-crash.html(1/1)100.00%PASS
text-decoration-style-multiple.html(1/1)100.00%PASS
text-decoration-style-recalc.html(1/1)100.00%PASS
text-decoration-subelements-001.html(1/1)100.00%PASS
text-decoration-subelements-002.html(1/1)100.00%PASS
text-decoration-subelements-003.html(0/1)0.00%FAIL
text-decoration-subelements-004.html(0/1)0.00%FAIL
text-decoration-subelements-005.html(0/1)0.00%FAIL
text-decoration-thickness-001.html(1/1)100.00%PASS
text-decoration-thickness-calc.html(1/1)100.00%PASS
text-decoration-thickness-computed.html(16/16)100.00%PASS
text-decoration-thickness-fixed.html(1/1)100.00%PASS
text-decoration-thickness-from-font-variable.html(1/1)100.00%PASS
text-decoration-thickness-from-zero-sized-font.html(1/1)100.00%PASS
text-decoration-thickness-initial.html(1/1)100.00%PASS
text-decoration-thickness-ink-skip-dilation.html(0/1)0.00%FAIL
text-decoration-thickness-invalid.html(7/7)100.00%PASS
text-decoration-thickness-length-rounding-001.html(1/1)100.00%PASS
text-decoration-thickness-length-rounding-002.html(1/1)100.00%PASS
text-decoration-thickness-length-rounding-min-val.html(1/1)100.00%PASS
text-decoration-thickness-linethrough-001.html(1/1)100.00%PASS
text-decoration-thickness-non-inherit.html(1/1)100.00%PASS
text-decoration-thickness-overline-001.html(0/1)0.00%FAIL
text-decoration-thickness-percent-001.html(0/1)0.00%FAIL
text-decoration-thickness-scroll-001.html(1/1)100.00%PASS
text-decoration-thickness-single.html(1/1)100.00%PASS
text-decoration-thickness-single2.html(1/1)100.00%PASS
text-decoration-thickness-underline-001.html(0/1)0.00%FAIL
text-decoration-thickness-valid.html(12/12)100.00%PASS
text-decoration-thickness-vertical-001.html(0/1)0.00%FAIL
text-decoration-thickness-vertical-002.html(0/1)0.00%FAIL
text-decoration-underline-wavy-covers-whole-line-length-001.html(1/1)100.00%PASS
text-emphasis-color-001.xht(0/1)0.00%FAIL
text-emphasis-color-property-001.html(0/1)0.00%FAIL
text-emphasis-color-property-001a.html(0/1)0.00%FAIL
text-emphasis-color-property-001b.html(0/1)0.00%FAIL
text-emphasis-color-property-002.html(0/1)0.00%FAIL
text-emphasis-line-height-001a.html(0/1)0.00%FAIL
text-emphasis-line-height-001b.html(0/1)0.00%FAIL
text-emphasis-line-height-001z.html(0/1)0.00%FAIL
text-emphasis-line-height-002a.html(0/1)0.00%FAIL
text-emphasis-line-height-002b.html(0/1)0.00%FAIL
text-emphasis-line-height-003a.html(0/1)0.00%FAIL
text-emphasis-line-height-003b.html(0/1)0.00%FAIL
text-emphasis-line-height-003c.html(0/1)0.00%FAIL
text-emphasis-line-height-003d.html(0/1)0.00%FAIL
text-emphasis-line-height-004a.html(0/1)0.00%FAIL
text-emphasis-line-height-004b.html(0/1)0.00%FAIL
text-emphasis-line-height-004c.html(0/1)0.00%FAIL
text-emphasis-line-height-004d.html(0/1)0.00%FAIL
text-emphasis-position-auto-001.html(1/1)100.00%PASS
text-emphasis-position-auto-002.html(1/1)100.00%PASS
text-emphasis-position-default-001.html(1/1)100.00%PASS
text-emphasis-position-over-left-001.xht(0/1)0.00%FAIL
text-emphasis-position-over-left-002.xht(0/1)0.00%FAIL
text-emphasis-position-over-right-001.xht(0/1)0.00%FAIL
text-emphasis-position-over-right-002.xht(0/1)0.00%FAIL
text-emphasis-position-property-001.html(0/1)0.00%FAIL
text-emphasis-position-property-001a.html(0/1)0.00%FAIL
text-emphasis-position-property-001b.html(0/1)0.00%FAIL
text-emphasis-position-property-001c.html(0/1)0.00%FAIL
text-emphasis-position-property-002.html(0/1)0.00%FAIL
text-emphasis-position-property-002a.html(0/1)0.00%FAIL
text-emphasis-position-property-002b.html(0/1)0.00%FAIL
text-emphasis-position-property-002c.html(0/1)0.00%FAIL
text-emphasis-position-property-003.html(0/1)0.00%FAIL
text-emphasis-position-property-003a.html(0/1)0.00%FAIL
text-emphasis-position-property-003b.html(0/1)0.00%FAIL
text-emphasis-position-property-003c.html(0/1)0.00%FAIL
text-emphasis-position-property-003d.html(0/1)0.00%FAIL
text-emphasis-position-property-003e.html(0/1)0.00%FAIL
text-emphasis-position-property-003f.html(0/1)0.00%FAIL
text-emphasis-position-property-003g.html(0/1)0.00%FAIL
text-emphasis-position-property-004.html(0/1)0.00%FAIL
text-emphasis-position-property-004a.html(0/1)0.00%FAIL
text-emphasis-position-property-004b.html(0/1)0.00%FAIL
text-emphasis-position-property-004c.html(0/1)0.00%FAIL
text-emphasis-position-property-004d.html(0/1)0.00%FAIL
text-emphasis-position-property-004e.html(0/1)0.00%FAIL
text-emphasis-position-property-004f.html(0/1)0.00%FAIL
text-emphasis-position-property-004g.html(0/1)0.00%FAIL
text-emphasis-position-property-005.html(0/1)0.00%FAIL
text-emphasis-position-property-005a.html(0/1)0.00%FAIL
text-emphasis-position-property-005b.html(0/1)0.00%FAIL
text-emphasis-position-property-005c.html(0/1)0.00%FAIL
text-emphasis-position-property-005d.html(0/1)0.00%FAIL
text-emphasis-position-property-005e.html(0/1)0.00%FAIL
text-emphasis-position-property-005f.html(0/1)0.00%FAIL
text-emphasis-position-property-005g.html(0/1)0.00%FAIL
text-emphasis-position-property-006.html(0/1)0.00%FAIL
text-emphasis-position-property-006a.html(0/1)0.00%FAIL
text-emphasis-position-property-006b.html(0/1)0.00%FAIL
text-emphasis-position-property-006c.html(0/1)0.00%FAIL
text-emphasis-position-property-006d.html(0/1)0.00%FAIL
text-emphasis-position-property-006e.html(0/1)0.00%FAIL
text-emphasis-position-property-006f.html(0/1)0.00%FAIL
text-emphasis-position-property-006g.html(0/1)0.00%FAIL
text-emphasis-position-under-left-001.xht(0/1)0.00%FAIL
text-emphasis-position-under-left-002.xht(0/1)0.00%FAIL
text-emphasis-position-under-right-001.xht(0/1)0.00%FAIL
text-emphasis-position-under-right-002.xht(0/1)0.00%FAIL
text-emphasis-property-001.html(1/1)100.00%PASS
text-emphasis-property-002.html(0/1)0.00%FAIL
text-emphasis-property-003.html(0/1)0.00%FAIL
text-emphasis-property-003a.html(0/1)0.00%FAIL
text-emphasis-property-003b.html(0/1)0.00%FAIL
text-emphasis-property-004.html(0/1)0.00%FAIL
text-emphasis-property-004a.html(0/1)0.00%FAIL
text-emphasis-punctuation-1.html(1/1)100.00%PASS
text-emphasis-punctuation-2.html(1/1)100.00%PASS
text-emphasis-punctuation-3.html(0/1)0.00%FAIL
text-emphasis-ruby-001.html(0/1)0.00%FAIL
text-emphasis-ruby-002.html(0/1)0.00%FAIL
text-emphasis-ruby-003.html(0/1)0.00%FAIL
text-emphasis-ruby-003a.html(0/1)0.00%FAIL
text-emphasis-ruby-004.html(0/1)0.00%FAIL
text-emphasis-ruby-004a.html(0/1)0.00%FAIL
text-emphasis-style-001.html(1/1)100.00%PASS
text-emphasis-style-002.html(0/1)0.00%FAIL
text-emphasis-style-007.html(0/1)0.00%FAIL
text-emphasis-style-008.html(0/1)0.00%FAIL
text-emphasis-style-010.html(0/1)0.00%FAIL
text-emphasis-style-012.html(0/1)0.00%FAIL
text-emphasis-style-016.html(0/1)0.00%FAIL
text-emphasis-style-021.html(0/1)0.00%FAIL
text-emphasis-style-filled-001.xht(0/1)0.00%FAIL
text-emphasis-style-none-001.xht(1/1)100.00%PASS
text-emphasis-style-open-001.xht(0/1)0.00%FAIL
text-emphasis-style-property-001.html(1/1)100.00%PASS
text-emphasis-style-property-002.html(0/1)0.00%FAIL
text-emphasis-style-property-003.html(0/1)0.00%FAIL
text-emphasis-style-property-004.html(0/1)0.00%FAIL
text-emphasis-style-property-005.html(0/1)0.00%FAIL
text-emphasis-style-property-005a.html(0/1)0.00%FAIL
text-emphasis-style-property-010Cc.html(1/1)100.00%PASS
text-emphasis-style-property-010Cf.html(1/1)100.00%PASS
text-emphasis-style-property-010Cn.html(1/1)100.00%PASS
text-emphasis-style-property-010Zl.html(1/1)100.00%PASS
text-emphasis-style-property-010Zp.html(1/1)100.00%PASS
text-emphasis-style-property-010Zs.html(1/1)100.00%PASS
text-emphasis-style-property-011.html(0/1)0.00%FAIL
text-emphasis-style-property-011a.html(0/1)0.00%FAIL
text-emphasis-style-property-011b.html(0/1)0.00%FAIL
text-emphasis-style-property-012.html(0/1)0.00%FAIL
text-emphasis-style-property-012a.html(0/1)0.00%FAIL
text-emphasis-style-property-012b.html(0/1)0.00%FAIL
text-emphasis-style-property-012c.html(0/1)0.00%FAIL
text-emphasis-style-property-013.html(0/1)0.00%FAIL
text-emphasis-style-property-013a.html(0/1)0.00%FAIL
text-emphasis-style-property-013b.html(0/1)0.00%FAIL
text-emphasis-style-property-014.html(0/1)0.00%FAIL
text-emphasis-style-property-014a.html(0/1)0.00%FAIL
text-emphasis-style-property-014b.html(0/1)0.00%FAIL
text-emphasis-style-property-015.html(0/1)0.00%FAIL
text-emphasis-style-property-015a.html(0/1)0.00%FAIL
text-emphasis-style-property-015b.html(0/1)0.00%FAIL
text-emphasis-style-property-016.html(0/1)0.00%FAIL
text-emphasis-style-property-016a.html(0/1)0.00%FAIL
text-emphasis-style-property-017.html(0/1)0.00%FAIL
text-emphasis-style-property-017a.html(0/1)0.00%FAIL
text-emphasis-style-property-017b.html(0/1)0.00%FAIL
text-emphasis-style-property-018.html(0/1)0.00%FAIL
text-emphasis-style-property-018a.html(0/1)0.00%FAIL
text-emphasis-style-property-019.html(0/1)0.00%FAIL
text-emphasis-style-property-019a.html(0/1)0.00%FAIL
text-emphasis-style-property-020.html(0/1)0.00%FAIL
text-emphasis-style-property-020a.html(0/1)0.00%FAIL
text-emphasis-style-shape-001.xht(0/1)0.00%FAIL
text-emphasis-style-string-001.xht(0/1)0.00%FAIL
text-emphasis-unrepresentable-characters.html(1/1)100.00%PASS
text-underline-offset-001.html(1/1)100.00%PASS
text-underline-offset-002.html(0/1)0.00%FAIL
text-underline-offset-calc.html(0/1)0.00%FAIL
text-underline-offset-computed.html(15/15)100.00%PASS
text-underline-offset-initial.html(1/1)100.00%PASS
text-underline-offset-invalid.html(8/8)100.00%PASS
text-underline-offset-negative.html(1/1)100.00%PASS
text-underline-offset-overline-vertical.html(1/1)100.00%PASS
text-underline-offset-overline.html(1/1)100.00%PASS
text-underline-offset-percentage.html(1/1)100.00%PASS
text-underline-offset-scroll-001.html(1/1)100.00%PASS
text-underline-offset-valid.html(12/12)100.00%PASS
text-underline-offset-variable.html(1/1)100.00%PASS
text-underline-offset-vertical-001.html(0/1)0.00%FAIL
text-underline-offset-vertical-002.html(0/1)0.00%FAIL
text-underline-offset-vertical-003.html(0/1)0.00%FAIL
text-underline-offset-zero-position.html(0/1)0.00%FAIL
text-underline-position-001a.html(1/1)100.00%PASS
text-underline-position-001b.html(1/1)100.00%PASS
text-underline-position-auto-001.html(1/1)100.00%PASS
text-underline-position-from-font-variable.html(1/1)100.00%PASS
text-underline-position-horizontal.html(1/1)100.00%PASS
text-underline-position-vertical-ja.html(0/1)0.00%FAIL
text-underline-position-vertical.html(0/1)0.00%FAIL