chromium/third_party/blink/web_tests/external/wpt/css/css-flexbox/flex-item-transferred-sizes-padding-border-sizing.html

<!DOCTYPE html>
<html>
  <head>
    <link rel="author" title="Sammy Gill" href="mailto:[email protected]" />
    <link rel="help" href="https://drafts.csswg.org/css-sizing-4/#aspect-ratio-size-transfers" />
    <link rel="help" href="https://drafts.csswg.org/css-sizing-3/#min-width" />
    <link rel="help" href="https://drafts.csswg.org/css-sizing/#box-sizing" />
    <link rel="help" href="https://bugs.webkit.org/show_bug.cgi?id=243887" />
    <link rel="match" href="../reference/ref-filled-green-100px-square-only.html" />
  </head>
  <!-- The box should be a 100px x 100px green square. The initial width should
       be 90px due to the  transferred min-width constraint from the specified
       min-height. Since box-sizing is border-box, 10px will be removed from
       the min-height (padding on the top and bottom of the box), and 90px will
       be used to compute the transferred min-width. 5px of padding will then
       be added on all sides of the 90px x 90px box to give it a resulting
       size of 100px x 100px. -->
  <style>
    .flexContainer {
      display: flex;
      flex-direction: column;
      float: left;
    }
    .item {
      background: green;
      padding-left: 25px;
      padding-right: 25px;
      box-sizing: border-box;
    }
  </style>
  <body>
    <p>Test passes if there is a filled green square.</p>
    <div class="flexContainer">
      <div class="item" style="min-height:100px; aspect-ratio: 1/1;"></div>
    </div>
  </body>
</html>