scrolling-column-rules.html | Explore in Territory

<!DOCTYPE html>
<html>
  <head>
    <title>Column rule in scrollable multicol container</title>
    <style>
      body {
        margin: 0;
      }
      .mc {
        columns: 2;
        column-gap: 110px;
        column-rule: 100px solid;
        -moz-columns: 2;
        -moz-column-gap: 110px;
        -moz-column-rule: 100px solid;
        -webkit-columns: 2;
        -webkit-column-gap: 110px;
        -webkit-column-rule: 100px solid;
        orphans: 1;
        widows: 1;
        height: 100px;
        overflow: hidden;
      }
    </style>
    <script>
      if (window.testRunner)
        testRunner.waitUntilDone();
      function foo() {
        document.getElementById('elm').scrollLeft = 200;
        if (window.testRunner)
          testRunner.notifyDone();
      }
    </script>
  </head>
  <body onload="foo()">
    <p>There should be <b>two</b> black squares below.</p>
    <div id="elm" class="mc">
      <div style="height:600px;"></div>
    </div>
  </body>
</html>

chromium/third_party/blink/web_tests/fast/multicol/scrolling-column-rules.html