dynamic-change-inline-size-001.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Test: Dynamic change to the inline-size of a block container</title>
<link rel="author" title="Ting-Yu Lin" href="mailto:[email protected]">
<link rel="author" title="Mozilla" href="https://www.mozilla.org/">
<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1731653">
<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1307853">
<link rel="stylesheet" href="/fonts/ahem.css">
<link rel="match" href="../reference/ref-filled-green-100px-square.xht">
<meta name="assert" content="This test verifies that the dynamic change to the block container's inline-size triggers the reflow of its children">

<style>
#block {
  inline-size: 100px;
  block-size: 100px;
  font: 50px/1 Ahem;
  color: green;
  word-break: break-all;
}

#block > div {
  /* The following inline-size and padding will give the div a border-box
     inline-size of 100px, both before and after this test's dynamic
     modification. */
  box-sizing: border-box;
  inline-size: 100px;
  padding-right: calc(100px - 50%);
  background: red;
}
</style>

<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
<div id="block">
  <div>XXXX</div>
</div>

<script>
/* Make sure the layout is up-to-date, which is essential to trigger the bug. */
document.documentElement.offsetHeight;

/* Change the block's inline-size to trigger incremental reflow. */
document.getElementById("block").style.inlineSize = "200px";
</script>
chromium/third_party/blink/web_tests/external/wpt/css/css-sizing/dynamic-change-inline-size-001.html
