chrome/browser/resources/options/search_page.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. */

.search-hidden {
  display: none !important;
}

.search-highlighted {
  background-color: rgba(255, 240, 120, 0.9);
}

/* Container for the elements that make up the search bubble. */
.search-bubble {
  left: 0;
  margin-top: 5px;
  pointer-events: none;
  position: absolute;
  top: -1000px;  /* Minor hack: position off-screen by default. */
  /* Create a z-context for search-bubble-innards, its after and before. */
  z-index: 1;
}

/* Contains the text content of the bubble.  */
.search-bubble-innards {
  background: -webkit-linear-gradient(rgba(255, 248, 172, 0.9),
                                      rgba(255, 243, 128, 0.9));
  border-radius: 2px;
  padding: 4px 10px;
  text-align: center;
  width: 100px;
}

/* Provides the border around the bubble (has to be behind ::after). */
.search-bubble-innards::before {
  border: 1px solid rgb(220, 198, 72);
  border-radius: 2px;
  bottom: -1px;
  content: '';
  left: -1px;
  position: absolute;
  right: -1px;
  top: -1px;
  z-index: -2;
}

/* Provides the arrow which points at the anchor element. */
.search-bubble-innards::after {
  -webkit-transform: rotate(45deg);
  background:
      -webkit-linear-gradient(-45deg, rgb(251, 255, 181),
                                      rgb(255, 248, 172) 50%,
                                      rgba(255, 248, 172, 0));
  border: 1px solid rgb(220, 198, 72);
  border-bottom-color: transparent;
  border-right-color: transparent;
  content: '';
  height: 12px;
  left: 53px;
  position: absolute;
  top: -7px;
  width: 12px;
  z-index: -1;
}

.search-bubble-wrapper {
  position: relative;
}

/* #mainview is here to win specificity. :( */
#mainview #searchPage.page,
#mainview #searchBox.page {
  padding-bottom: 0;
}