src/content/peerconnection/bandwidth/css/main.css

/*
 *  Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree.
 */
video {
  display: inline-block;
  position: relative;
  top: 9px;
  width: calc(100% - 120px);
}

button {
  margin: 0 20px 0 0;
  width: 96px;
}

video {
  height: 225px;
  margin: 0 0 20px 0;
  vertical-align: top;
  width: calc(50% - 12px);
}

video#localVideo {
  margin: 0 20px 20px 0;
}

div.label {
  display: inline-block;
  font-weight: 400;
  width: 120px;
}

div.graph-container {
  float: left;
  margin: 0.5em;
  width: calc(50% - 1em);
}

a#viewSource {
  clear: both;
}