import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

toolkit/themes/shared/aboutNetworking.css

@@ -0,0 +1,123 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+@import url("chrome://global/skin/in-content/common.css");
+
+html {
+  height: 100%;
+}
+
+body {
+  display: flex;
+  align-items: stretch;
+  height: 100%;
+}
+
+#sectionTitle {
+  float: left;
+}
+
+#refreshDiv {
+  justify-content: flex-end;
+  margin-bottom: 0.5em;
+}
+
+#refreshButton {
+  margin-top: 0;
+}
+
+/** Categories **/
+
+.category {
+  cursor: pointer;
+  /* Center category names */
+  display: flex;
+  align-items: center;
+}
+
+.category .category-name {
+  pointer-events: none;
+}
+
+#categories hr {
+  border-top-color: rgba(255,255,255,0.15);
+}
+
+/** Warning container **/
+
+/* XXX: a lot of this is duplicated from info-pages.css since that stylesheet
+   is incompatible with this type of layout */
+.warningBackground:not([hidden]) {
+  display: flex;
+}
+
+.warningBackground {
+  flex-direction: column;
+  box-sizing: border-box;
+  min-height: 100vh;
+  align-items: center;
+  justify-content: center;
+  width: 100%;
+  height: 100%;
+  z-index: 10;
+  top: 0;
+  left: 0;
+  position: fixed;
+  background: var(--in-content-page-background);
+}
+
+.title {
+  position: relative;
+  border-bottom: 1px solid var(--in-content-box-border-color);
+  margin-bottom: 1em;
+  padding-bottom: 0.5em;
+}
+
+.title::before {
+  content: "";
+  left: -2.3em;
+  top: 0;
+  position: absolute;
+  display: block;
+  width: 1.6em;
+  height: 1.6em;
+  background: url("chrome://global/skin/icons/warning.svg") no-repeat left center;
+  background-size: 1.6em;
+}
+
+.warningBackground button {
+  margin-top: 1em;
+  margin-left: 0;
+  min-width: 100px;
+}
+
+/** Content area **/
+
+.main-content {
+  flex: 1;
+}
+
+.tab {
+  padding: 0.5em 0;
+}
+
+.tab table {
+  width: 100%;
+}
+
+th, td, table {
+  border-collapse: collapse;
+  border: none;
+  text-align: start;
+}
+
+th {
+  padding-bottom: 0.5em;
+  font-size: larger;
+}
+
+td {
+  padding-bottom: 0.25em;
+  border-bottom: 1px solid var(--in-content-box-border-color);
+}