chrome/browser/resources/chromeos/proxy_settings.css

/* Copyright (c) 2012 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. */

/* These additional styles constrain the size of the proxy page to the height of
   the dialog containing them. */
html {
  height: 100%;
}

body {
  -webkit-box-sizing: border-box;
  height: 100%;
  margin: 0;
  padding: 8px;
}

#proxyPage {
  height: 100%;
}

#proxy-page-title {
  /* We have a title on the window, so the title in domui should be hidden. */
  display: none;
}

#internet-details-content-area > .subpages-tab-contents {
  height: 100% !important;
}

#advanced-config {
  padding-top: 10px;
}

html[highlight=strong] input[type='button']:focus,
html[highlight=strong] input[type='checkbox']:focus,
html[highlight=strong] input[type='radio']:focus,
html[highlight=strong] input[type='text']:focus,
html[highlight=strong] input[type='url']:focus,
html[highlight=strong] button:focus,
html[highlight=strong] list:focus {
  box-shadow: 0 0 23px rgb(77, 144, 254) !important;
}

html[highlight=strong] #network-proxy-tab {
  padding: 10px;
}