<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Grid Layout Test: Changes on Default-Alignment may affect grid item's width</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/#grid-item-sizing">
<link rel="help" href="https://drafts.csswg.org/css-align-3/#propdef-justify-items">
<link rel="help" href="https://drafts.csswg.org/css-align/#valdef-justify-self-stretch">
<link rel="help" href="https://drafts.csswg.org/css-align/#valdef-justify-self-start">
<meta name="assert" content="Changing the grid item's justify-items value from 'stretch' to 'start' causes replaced items to grow.">
<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
<style>
.grid {
  position: relative;
  display: inline-grid;
  grid-template-columns: 80px;
  grid-template-rows: 100px;
  font: 20px/1 Ahem;
  background: grey;
  justify-items: stretch;
}
#item {
  background: blue;
  justify-self: auto;
}
</style>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/check-layout-th.js"></script>
<script src="support/style-change.js"></script>
<script>
setup({ explicit_done: true });
function runTest() {
  evaluateStyleChangeMultiple('before', {
    item: {
      'data-expected-width': 80,
      'data-expected-height': 80,
    },
  });
  grid.style.justifyItems = 'start';
  evaluateStyleChangeMultiple('after', {
    item: {
      'data-expected-width': 100,
      'data-expected-height': 100,
    },
  });
  done();
}
</script>
<body onload="document.fonts.ready.then(() => { runTest(); })">
<div class="grid" id="grid">
  <img id="item" src="support/100x100-green.png"></img>
</div>
</body>