wpt / css / css-backgrounds / parsing / background-position-valid.html

Status: PASS | Duration: 70ms | Subtests: 31/31 | Open test on wpt.live | wpt.fyi

TestTest SourceSubtests (31/31)

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

SubtestStatusMessage
e.style['background-position'] = "1px" should set the property valuePASS
e.style['background-position'] = "1px center" should set the property valuePASS
e.style['background-position'] = "-2% -3%" should set the property valuePASS
e.style['background-position'] = "5% top" should set the property valuePASS
e.style['background-position'] = "center" should set the property valuePASS
e.style['background-position'] = "center center" should set the property valuePASS
e.style['background-position'] = "center 6px" should set the property valuePASS
e.style['background-position'] = "center left" should set the property valuePASS
e.style['background-position'] = "center right 7%" should set the property valuePASS
e.style['background-position'] = "center bottom" should set the property valuePASS
e.style['background-position'] = "center top 8px" should set the property valuePASS
e.style['background-position'] = "left" should set the property valuePASS
e.style['background-position'] = "right 9%" should set the property valuePASS
e.style['background-position'] = "left 10px center" should set the property valuePASS
e.style['background-position'] = "right 11% bottom" should set the property valuePASS
e.style['background-position'] = "left 12px top 13px" should set the property valuePASS
e.style['background-position'] = "right center" should set the property valuePASS
e.style['background-position'] = "left bottom" should set the property valuePASS
e.style['background-position'] = "right top 14%" should set the property valuePASS
e.style['background-position'] = "bottom" should set the property valuePASS
e.style['background-position'] = "top 15px center" should set the property valuePASS
e.style['background-position'] = "bottom 16% left" should set the property valuePASS
e.style['background-position'] = "top 17px right 18px" should set the property valuePASS
e.style['background-position'] = "bottom center" should set the property valuePASS
e.style['background-position'] = "top left" should set the property valuePASS
e.style['background-position'] = "bottom right 19%" should set the property valuePASS
e.style['background-position'] = "20% 0%" should set the property valuePASS
e.style['background-position'] = "0% 0%" should set the property valuePASS
e.style['background-position'] = "0%" should set the property valuePASS
e.style['background-position'] = "0% center" should set the property valuePASS
e.style['background-position'] = "center 0%" should set the property valuePASS

/css/css-backgrounds/parsing/background-position-valid.html

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>CSS Backgrounds and Borders Module Level 3: parsing background-position with valid values</title>
<link rel="author" title="Eric Willigers" href="mailto:ericwilligers@chromium.org">
<link rel="help" href="https://drafts.csswg.org/css-backgrounds/#background-position">
<meta name="assert" content="background-position supports the full grammar '<bg-position>'.">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/css/support/parsing-testcommon.js"></script>
</head>
<body>
<script>
test_valid_value("background-position", "1px", ["1px", "1px center"]);
test_valid_value("background-position", "1px center", ["1px", "1px center"]);
test_valid_value("background-position", "-2% -3%");
test_valid_value("background-position", "5% top");
test_valid_value("background-position", "center", ["center", "center center"]);
test_valid_value("background-position", "center center", ["center", "center center"]);
test_valid_value("background-position", "center 6px");
test_valid_value("background-position", "center left", ["left center", "left"]);
test_valid_value("background-position", "center right 7%", "right 7% center");
test_valid_value("background-position", "center bottom", ["center bottom", "bottom"]);
test_valid_value("background-position", "center top 8px", ["center top 8px", "center 8px"]);
test_valid_value("background-position", "left", ["left center", "left"]);
test_valid_value("background-position", "right 9%");
test_valid_value("background-position", "left 10px center", ["left 10px center", "10px"]);
test_valid_value("background-position", "right 11% bottom", ["right 11% bottom", "right 11% bottom 0%"]); // "right 11% bottom 0%" in Edge
test_valid_value("background-position", "left 12px top 13px", ["left 12px top 13px", "12px 13px"]);
test_valid_value("background-position", "right center", ["right center", "right"]);
test_valid_value("background-position", "left bottom");
test_valid_value("background-position", "right top 14%", ["right top 14%", "right 14%"]);
test_valid_value("background-position", "bottom", ["center bottom", "bottom"]);
test_valid_value("background-position", "top 15px center", ["center top 15px", "center 15px"]);
test_valid_value("background-position", "bottom 16% left", ["left bottom 16%", "left 0% bottom 16%"]); // "left 0% bottom 16%" in Edge
test_valid_value("background-position", "top 17px right 18px", "right 18px top 17px");
test_valid_value("background-position", "bottom center", ["center bottom", "bottom"]);
test_valid_value("background-position", "top left", "left top");
test_valid_value("background-position", "bottom right 19%", ["right 19% bottom", "right 19% bottom 0%"]); // "right 19% bottom 0%" in Edge
test_valid_value("background-position", "20% 0%");
test_valid_value("background-position", "0% 0%");
test_valid_value("background-position", "0%", ["0%", "0% center"]);
test_valid_value("background-position", "0% center", ["0%", "0% center"]);
test_valid_value("background-position", "center 0%");
</script>
</body>
</html>