wpt / css / css-flexbox / percentage-heights-000.html

Status: FAIL | Duration: 2ms | Subtests: 3/6 | Open test on wpt.live | wpt.fyi

TestTest SourceSubtests (3/6)

Data from commit:
1efe22d Fix duplicate table cell padding with float layout (#675) (2026-08-10)

SubtestStatusMessage
.flexbox 1PASS
.flexbox 2PASS
.flexbox 3PASS
.flexbox 4FAILassert_equals: data-offset-x expected 60 got 0 assert_equals: data-offset-x expected 20 got 0 assert_equals: data-offset-y expected 0 got 40 assert_equals: data-offset-x expected 60 got 40 assert_equals: data-offset-y expected 40 got 0
.flexbox 5FAILassert_equals: data-offset-x expected 60 got 0 assert_equals: data-offset-x expected 20 got 40 assert_equals: data-offset-x expected 60 got 40
.flexbox 6FAILassert_equals: data-offset-x expected 80 got 0 assert_equals: data-offset-x expected 40 got 0 assert_equals: data-offset-y expected 0 got 20 assert_equals: data-offset-y expected 0 got 60

/css/css-flexbox/percentage-heights-000.html

<!DOCTYPE html>
<html>
<title>CSS Flexbox: Basic percentage heights</title>
<link rel="author" title="Google" href="https://www.google.com/" />
<link rel="help" href="https://drafts.csswg.org/css-flexbox-1/#main-sizing" />
<meta name="flags" content="dom" />
<meta name="assert" content="This test checks that percentage heights on a flex item correctly resolve against the container." />
<style>
.flexbox {
    display: flex;
    background-color: #aaa;
    position: relative;
}
.flexbox :nth-child(1) {
    background-color: blue;
}
.flexbox :nth-child(2) {
    background-color: green;
}
.flexbox :nth-child(3) {
    background-color: red;
}

.flexbox > div {
    width: 40%;
    height: 40%;
}
.column {
    flex-flow: column wrap;
    width: 100px;
    height: 100px;
    align-content: flex-start;
}
</style>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/check-layout-th.js"></script>
<body onload="checkLayout('.flexbox')">
<div id=log></div>

<div class="flexbox column">
    <div data-expected-height="40" data-offset-x="0" data-offset-y="0"></div>
    <div data-expected-height="40" data-offset-x="0" data-offset-y="40"></div>
    <div data-expected-height="40" data-offset-x="40" data-offset-y="0"></div>
</div>

<div class="flexbox column">
    <div data-expected-height="40" data-offset-x="0" data-offset-y="0" style="margin-bottom: 10%"></div>
    <div data-expected-height="40" data-offset-x="40" data-offset-y="0" style="margin-bottom: 20%"></div>
    <div data-expected-height="40" data-offset-x="40" data-offset-y="60"></div>
</div>

<div class="flexbox column">
    <div data-expected-height="20" data-offset-x="0" data-offset-y="0" style="flex: 1; min-height: 0; max-height: 20%"></div>
    <div data-expected-height="40" data-offset-x="0" data-offset-y="20"></div>
    <div data-expected-height="40" data-offset-x="0" data-offset-y="60"></div>
</div>

<div class="flexbox column" style="writing-mode: vertical-rl">
    <div data-expected-width="40" data-offset-x="60" data-offset-y="0"></div>
    <div data-expected-width="40" data-offset-x="20" data-offset-y="0"></div>
    <div data-expected-width="40" data-offset-x="60" data-offset-y="40"></div>
</div>

<div class="flexbox column" style="writing-mode: vertical-rl">
    <div data-expected-width="40" data-offset-x="60" data-offset-y="0" style="margin-bottom: 10%"></div>
    <div data-expected-width="40" data-offset-x="20" data-offset-y="0" style="margin-bottom: 20%"></div>
    <div data-expected-width="40" data-offset-x="60" data-offset-y="60"></div>
</div>

<div class="flexbox column" style="writing-mode: vertical-rl">
    <div data-expected-width="20" data-offset-x="80" data-offset-y="0" style="flex: 1; min-width: 0; max-width: 20%"></div>
    <div data-expected-width="40" data-offset-x="40" data-offset-y="0"></div>
    <div data-expected-width="40" data-offset-x="0" data-offset-y="0"></div>
</div>

</body>
</html>