wpt / css / css-backgrounds / parsing / border-image-width-computed.html

Status: PASS | Duration: 57ms | Subtests: 12/12 | Open test on wpt.live | wpt.fyi

TestTest SourceSubtests (12/12)

Data from commit:
a50cb89 wpt: run reference-named files which are themselves tests (#836) (2026-09-03)

SubtestStatusMessage
Property border-image-width value '0'PASS
Property border-image-width value '1'PASS
Property border-image-width value 'auto'PASS
Property border-image-width value '10px'PASS
Property border-image-width value '20%'PASS
Property border-image-width value 'calc(20% + 10px)'PASS
Property border-image-width value 'calc(-0.5em + 10px)'PASS
Property border-image-width value 'calc(0.5em + 10px)'PASS
Property border-image-width value '1 auto'PASS
Property border-image-width value '1 auto 10px'PASS
Property border-image-width value '1 auto 10px 20%'PASS
Property border-image-width value '20% 10px auto 1'PASS

/css/css-backgrounds/parsing/border-image-width-computed.html

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>CSS Backgrounds and Borders: getComputedStyle().borderImageWidth</title>
<link rel="help" href="https://drafts.csswg.org/css-backgrounds/#border-image-width">
<meta name="assert" content="border-image-width computed value is four values, each either a number, the keyword auto, or a computed length-percentage value.">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/css/support/computed-testcommon.js"></script>
<style>
  #target {
    font-size: 40px;
  }
</style>
</head>
<body>
<div id="target"></div>
<script>
test_computed_value("border-image-width", "0");
test_computed_value("border-image-width", "1");
test_computed_value("border-image-width", "auto");
test_computed_value("border-image-width", "10px");
test_computed_value("border-image-width", "20%");
test_computed_value("border-image-width", "calc(20% + 10px)");
test_computed_value("border-image-width", "calc(-0.5em + 10px)", "0px");
test_computed_value("border-image-width", "calc(0.5em + 10px)", "30px");
test_computed_value("border-image-width", "1 auto");
test_computed_value("border-image-width", "1 auto 10px");
test_computed_value("border-image-width", "1 auto 10px 20%");
test_computed_value("border-image-width", "20% 10px auto 1");
</script>
</body>
</html>