css/css-grid/alignment/grid-row-axis-alignment-positioned-items-001.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Grid Layout Test: Self-Alignment along row axis of absolute positioned items with 'definite' grid positions</title>
<link rel="author" title="Javier Fernandez Garcia-Boente" href="mailto:jfernandez@igalia.com">
<link rel="help" href="https://drafts.csswg.org/css-grid-1/#row-align">
<link rel="help" href="https://drafts.csswg.org/css-grid-1/#abspos-items">
<link rel="help" href="https://drafts.csswg.org/css-align-3/#propdef-justify-self">
<link rel="help" href="https://drafts.csswg.org/css-align-3/#valdef-self-position-start">
<meta name="assert" content="Absolute positioned grid items with 'start' value for justify-self are flushed with its alignment container's 'start' edge.">
<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
<style>
.grid {
  position: relative;
  display: inline-grid;
  grid-template-columns: 100px 150px;
  grid-template-rows: 150px 100px;
  font: 10px/1 Ahem;
  background: grey;
  align-items: start;
}
.grid.RTL { width: 400px; }
.grid > div { position: absolute; }
.grid > :nth-child(1) { background: green; }
.grid > :nth-child(2) { background: blue; }
.grid > :nth-child(3) { background: yellow; }
.grid > :nth-child(4) { background: red; }

.RTL { direction: rtl; }
.verticalLR { writing-mode: vertical-lr; }
.verticalRL { writing-mode: vertical-rl; }

.firstRowFirstColumn {
  grid-row: 1 / 2;
  grid-column: 1 / 2;
  justify-self: start;
}
.firstRowSecondColumn {
  grid-row: 1 / 2;
  grid-column: 2 / 3;
  justify-self: start;
}
.secondRowFirstColumn {
  grid-row: 2 / 3;
  grid-column: 1 / 2;
  justify-self: start;
}
.secondRowSecondColumn {
  grid-row: 2 / 3;
  grid-column: 2 / 3;
  justify-self: start;
}
</style>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/check-layout-th.js"></script>
<script type="text/javascript">
  setup({ explicit_done: true });
</script>
<body onload="document.fonts.ready.then(() => { checkLayout('.grid'); })">
<div class="grid">
  <div data-offset-x="0"   data-offset-y="0"   data-expected-width="60" data-expected-height="10" class="firstRowFirstColumn">X XX X</div>
  <div data-offset-x="100" data-offset-y="0"   data-expected-width="70" data-expected-height="30" class="firstRowSecondColumn">XX X<br>X XXX X<br>XX XXX</div>
  <div data-offset-x="0"   data-offset-y="150" data-expected-width="60" data-expected-height="10" class="secondRowFirstColumn">X XX X</div>
  <div data-offset-x="100" data-offset-y="150" data-expected-width="60" data-expected-height="40" class="secondRowSecondColumn">XX X<br>X XXX<br>X<br>XX XXX</div>
</div>

<div class="grid RTL">
  <div data-offset-x="340" data-offset-y="0"   data-expected-width="60" data-expected-height="10" class="firstRowFirstColumn">X XX X</div>
  <div data-offset-x="230" data-offset-y="0"   data-expected-width="70" data-expected-height="30" class="firstRowSecondColumn">XX X<br>X XXX X<br>XX XXX</div>
  <div data-offset-x="340" data-offset-y="150" data-expected-width="60" data-expected-height="10" class="secondRowFirstColumn">X XX X</div>
  <div data-offset-x="240" data-offset-y="150" data-expected-width="60" data-expected-height="40" class="secondRowSecondColumn">XX X<br>X XXX<br>X<br>XX XXX</div>
</div>

<br><br>

<div class="grid verticalLR">
  <div data-offset-x="0"   data-offset-y="0"   data-expected-width="10" data-expected-height="60" class="firstRowFirstColumn">X XX X</div>
  <div data-offset-x="0"   data-offset-y="100" data-expected-width="30" data-expected-height="70" class="firstRowSecondColumn">XX X<br>X XXX X<br>XX XXX</div>
  <div data-offset-x="150" data-offset-y="0"   data-expected-width="10" data-expected-height="60" class="secondRowFirstColumn">X XX X</div>
  <div data-offset-x="150" data-offset-y="100" data-expected-width="40" data-expected-height="60" class="secondRowSecondColumn">XX X<br>X XXX<br>X<br>XX XXX</div>
</div>

<div class="grid verticalRL">
  <div data-offset-x="240" data-offset-y="0"   data-expected-width="10" data-expected-height="60" class="firstRowFirstColumn">X XX X</div>
  <div data-offset-x="220" data-offset-y="100" data-expected-width="30" data-expected-height="70" class="firstRowSecondColumn">XX X<br>X XXX X<br>XX XXX</div>
  <div data-offset-x="90"  data-offset-y="0"   data-expected-width="10" data-expected-height="60" class="secondRowFirstColumn">X XX X</div>
  <div data-offset-x="60"  data-offset-y="100" data-expected-width="40" data-expected-height="60" class="secondRowSecondColumn">XX X<br>X XXX<br>X<br>XX XXX</div>
</div>
</body>