plugin-in-multicol.html | Explore in Territory

<!DOCTYPE html>
<div style="columns: 2; height: 300px">
  <div style="height: 100px"></div>
  <div id="container"></div>
  <div style="height: 200px"></div>
</div>
<script src="../../resources/run-after-layout-and-paint.js"></script>
<script>
onload = () => {
  if (window.testRunner)
    testRunner.waitUntilDone();

  runAfterLayoutAndPaint(function() {
    var embed = document.createElement('embed');
    embed.type = 'application/x-blink-test-plugin';
    embed.width = 100;
    embed.height = 100;
    embed.addEventListener("message", function(message) {
      if (message.data == 'loaded') {
        if (window.testRunner)
          testRunner.notifyDone();
      }
    });
    container.appendChild(embed);
  });
};
</script>

chromium/third_party/blink/web_tests/ppapi/plugins/plugin-in-multicol.html