chromium/third_party/blink/web_tests/external/wpt/css/CSS2/floats-clear/floats-clear-multicol-balancing-000.html

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN">
<title>CSS Float Test: Test the clear position after the floating elements breaking across multi-columns</title>
<link rel="author" title="Elika J. Etemad" href="http://fantasai.inkedblade.net/contact"/>
<link rel="author" title="Ting-Yu Lin" href="mailto:[email protected]">
<link rel="author" title="Mozilla" href="http://www.mozilla.org/">
<link rel="help" href="https://drafts.csswg.org/css2/visuren.html#flow-control">
<link rel="match" href="floats-clear-multicol-balancing-000-ref.html">

<style type="text/css">
.multicol {
  margin: 1em;
  border: solid silver;
  width: 300px;
  column-width: 100px;
  column-gap: 0;
  height: 100px;
}

.float {
  float: right;
  width: 15px;
  background: aqua;
  height: 250px;
}
.L {
  float: left;
}

.container {
  width: 100%;
  background: red;
}

.clear {
  border-bottom: 5px solid orange;
}
</style>

<p>The orange line should be in the third column
(immediately after the end of the aqua lines).

<div class="multicol">
  <div class="container">
    <div class="float L"></div>
    <div class="float R"></div>
  </div>
  <div class="clear">
    <br clear="all">
  </div>
</div>