chrome/browser/resources/chromeos/arc_support/progressbar.css

/* Copyright 2017 The Chromium Authors. All rights reserved.
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file. */

.progress-container {
  display: block;
  height: 4px;
  margin: 40px 0 0 0;
  overflow: hidden;
  padding: 0;
  position: relative;
  width: 100%;
}

.progress-primary,
.progress-secondary {
  height: 4px;
  position: absolute;
  width: 100%;
}

.progress-primary {
  -webkit-transform-origin: right center;
  background: rgb(66, 133, 244);
  transform-origin: right center;
}

.progress-primary.red {
  background: rgb(255, 55, 79);
}

.progress-secondary {
  -webkit-transform-origin: center center;
  background: rgb(224, 224, 244);
  transform-origin: center center;
}