chromium/third_party/blink/web_tests/external/wpt/css/css-flexbox/auto-margins-003.html

<!DOCTYPE html>
<html>
<head>
<title>CSS Flexbox: Change to auto-margin items in column flexbox</title>
<link rel="help" href="https://drafts.csswg.org/css-flexbox/#valdef-flex-direction-column">
<link rel="help" href="https://drafts.csswg.org/css-flexbox/#propdef-align-self">
<link rel="match" href="reference/auto-margins-003-ref.html">
<meta name="assert" content="This test ensures that auto margins for column flows are correctly calculated"/>
<link href="support/flexbox.css" rel="stylesheet">
 <style>
    .flexbox {
      border: 1px solid black;
      width: 400px;
      height: 200px;
    }
    .item1 {
      margin: 0 auto;
      background: lightblue;
    }
    .item1v {
      margin: auto 0;
      background: lightblue;
    }
    .item2 {
      background: lime;
    }
  </style>
</head>
<body>
  <p>The test passes if the flex items are properly centered in each column</p>
  <div class="flexbox column">
    <div class="item1">centeredWithMargins</div>
    <div class="item2 align-self-center">centeredWithAlignSelf</div>
  </div>
  <div style="writing-mode: vertical-lr;">
    <div class="flexbox column">
      <div class="item1v">centeredWithMargins</div>
      <div class="item2 align-self-center">centeredWithAlignSelf</div>
    </div>
  </div>
</body>
</html>