chromium/third_party/blink/web_tests/external/wpt/html/semantics/embedded-content/media-elements/track/track-element/track-cue-rendering-after-controls-added-ref.html

<!DOCTYPE html>
<html class="reftest-wait">
<script src="/common/reftest-wait.js"></script>
<title>Text track cue layout after controls are added (reference)</title>
<style>
::cue {
  font-size: 50px;
}

/* Video width should be large enough to display all of the media controls. */
video {
  border: 1px solid gray;
  width: 500px;
}
</style>
<video controls onloadeddata="this.onloadeddata = null; takeScreenshot();">
  <source src="/media/white.webm" type="video/webm">
  <source src="/media/white.mp4" type="video/mp4">
</video>
<script>
// Add a single cue at line -2, where it would be if there were controls visible
// at the bottom. (This assumes that those controls are less than 50px high.)
// cue at line -1.
var video = document.querySelector("video");
var track = video.addTextTrack("captions");
var cue = new VTTCue(0, 1, "text");
cue.line = -2;
track.addCue(cue);
track.mode = "showing";
</script>
</html>