Blitz - WPT: grid-align-baseline-grid-001.html

wpt / css / css-grid / alignment / grid-align-baseline-grid-001.html

Data from commit:
708eb61 WPT runner: support mismatch reftests and multiple rel=match links (#665) (2026-08-09)

Subtest	Status	Message
.target > * 1	PASS
.target > * 2	PASS
.target > * 3	FAIL	assert_equals: data-offset-y expected 100 got 130
.target > * 4	PASS
.target > * 5	FAIL	assert_equals: data-offset-y expected 55 got 25
.target > * 6	PASS
.target > * 7	FAIL	assert_equals: data-offset-y expected 115 got 130
.target > * 8	PASS
.target > * 9	PASS
.target > * 10	PASS
.target > * 11	FAIL	assert_equals: data-offset-y expected 90 got 130
.target > * 12	PASS

Enable JavaScript in test iframe

/css/css-grid/alignment/grid-align-baseline-grid-001.html

<!DOCTYPE html>
<link rel="help" href="https://drafts.csswg.org/css-grid-1/#grid-baselines">
<style>
.target {
  display: grid;
  grid-auto-flow: column;
  position: relative;
  line-height: 0;
  font-size: 20px;
  inline-size: 300px;
  margin-block: 10px;
  padding: 10px;
  border: solid 3px;
}

.inner {
  display: grid;
  gap: 10px;
  grid-template: 50px 50px / 50px 50px 50px;
  border: solid 5px;
  padding: 10px;
}

.inner > div:first-child,
.inner > div:last-child {
  align-self: start;
}

span {
  display: inline-block;
  width: 1em;
  height: 1em;
  outline: solid cyan 3px;
  outline-offset: -3px;
}
</style>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/check-layout-th.js"></script>
<body onload="checkLayout('.target > *')">

<div class="target" style="align-items: first baseline;">
  <div data-offset-y="35"><span></span></div>
  <div class="inner" style="align-items: first baseline;" data-offset-y="10">
    <div style="font-size: 20px;"><span></span></div>
    <div style="font-size: 10px;"><span></span></div>
    <div style="font-size: 30px;"><span></span></div>
    <div style="font-size: 15px;"><span></span></div>
    <div style="font-size: 35px;"><span></span></div>
    <div style="font-size: 25px;"><span></span></div>
  </div>
</div>

<div class="target" style="align-items: last baseline;">
  <div data-offset-y="100"><span></span></div>
  <div class="inner" style="align-items: first baseline;" data-offset-y="10">
    <div style="font-size: 20px;"><span></span></div>
    <div style="font-size: 10px;"><span></span></div>
    <div style="font-size: 30px;"><span></span></div>
    <div style="font-size: 15px;"><span></span></div>
    <div style="font-size: 35px;"><span></span></div>
    <div style="font-size: 25px;"><span></span></div>
  </div>
</div>

<div class="target" style="align-items: first baseline;">
  <div data-offset-y="55"><span></span></div>
  <div class="inner" style="align-items: last baseline;" data-offset-y="10">
    <div style="font-size: 20px;"><span></span></div>
    <div style="font-size: 10px;"><span></span></div>
    <div style="font-size: 30px;"><span></span></div>
    <div style="font-size: 15px;"><span></span></div>
    <div style="font-size: 35px;"><span></span></div>
    <div style="font-size: 25px;"><span></span></div>
  </div>
</div>

<div class="target" style="align-items: last baseline;">
  <div data-offset-y="115"><span></span></div>
  <div class="inner" style="align-items: last baseline;" data-offset-y="10">
    <div style="font-size: 20px;"><span></span></div>
    <div style="font-size: 10px;"><span></span></div>
    <div style="font-size: 30px;"><span></span></div>
    <div style="font-size: 15px;"><span></span></div>
    <div style="font-size: 35px;"><span></span></div>
    <div style="font-size: 25px;"><span></span></div>
  </div>
</div>

<div class="target" style="align-items: first baseline;">
  <div data-offset-y="25"><span></span></div>
  <div class="inner" style="align-items: end;" data-offset-y="10">
    <div style="font-size: 20px;"><span></span></div>
    <div style="font-size: 10px;"><span></span></div>
    <div style="font-size: 30px;"><span></span></div>
    <div style="font-size: 15px;"><span></span></div>
    <div style="font-size: 35px;"><span></span></div>
    <div style="font-size: 25px;"><span></span></div>
  </div>
</div>

<div class="target" style="align-items: last baseline;">
  <div data-offset-y="90"><span></span></div>
  <div class="inner" style="align-items: end;" data-offset-y="10">
    <div style="font-size: 20px;"><span></span></div>
    <div style="font-size: 10px;"><span></span></div>
    <div style="font-size: 30px;"><span></span></div>
    <div style="font-size: 15px;"><span></span></div>
    <div style="font-size: 35px;"><span></span></div>
    <div style="font-size: 25px;"><span></span></div>
  </div>
</div>