layout/reftests/flexbox/pagination/flexbox-single-column-vertical-rl-5.html


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<!DOCTYPE html>
<!-- Any copyright is dedicated to the Public Domain.
     http://creativecommons.org/publicdomain/zero/1.0/ -->
<html>
  <meta charset="utf-8">
  <title>CSS Flexbox Test: Fragmentation of block-size:auto single-line column flex container in a zero block-size multicol</title>
  <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com">
  <link rel="author" title="Ting-Yu Lin" href="mailto:tlin@mozilla.com">
  <link rel="author" title="Mozilla" href="http://www.mozilla.org/">
  <link rel="help" href="https://drafts.csswg.org/css-flexbox-1/#pagination">
  <link rel="match" href="flexbox-single-column-vertical-rl-5-ref.html">
  <meta name="assert" content="This test verifies fragmentation of flex containers can make progress in a zero block-size multicol.">

  <style>
  html {
    writing-mode: vertical-rl;
  }
  .multicol {
    column-count: 2;
    block-size: 0;
    border: 1px solid black;
    margin-block-end: 30px; /* Just to separate each sub-testcase visually. */
  }

  .flexContainer {
    display: flex;
    flex-wrap: nowrap;
    flex-direction: column;
    padding: 1px;
  }

  .boxDecorationBreak {
    padding: 5px;
    box-decoration-break: clone;
  }

  </style>

  <body>
    <!-- Basic one with padding on the flex container.-->
    <div class="multicol">
      <div class="flexContainer">
        <div>abc</div><div>def</div>
      </div>
    </div>

    <!-- Larger padding and box-decoration-break:clone on the flex container.-->
    <div class="multicol">
      <div class="flexContainer boxDecorationBreak">
        <div>abc</div><div>def</div>
      </div>
    </div>
  </body>
</html>