Add a diff css file

www/jtracker/core/css/diff.css

@@ -0,0 +1,95 @@
+/*
+  @copyright  Copyright (C) 2012 - 2014 Open Source Matters, Inc. All rights reserved.
+  @license    GNU General Public License version 2 or later; see LICENSE.txt
+
+  This CSS provides code highlighting with GitHub styles
+ */
+
+.Differences {
+	width: 100%;
+	border-collapse: collapse;
+	border-spacing: 0;
+	empty-cells: show;
+}
+
+.Differences thead th {
+	text-align: left;
+	border-bottom: 1px solid #000;
+	background: #aaa;
+	color: #000;
+	padding: 4px;
+}
+.Differences tbody th {
+	text-align: right;
+	background: #ccc;
+	width: 4em;
+	padding: 1px 2px;
+	border-right: 1px solid #000;
+	vertical-align: top;
+	font-size: 13px;
+}
+
+.Differences td {
+	padding: 1px 2px;
+	font-family: Consolas, monospace;
+	font-size: 13px;
+}
+
+.DifferencesSideBySide .ChangeInsert td.Left {
+	background: #dfd;
+}
+
+.DifferencesSideBySide .ChangeInsert td.Right {
+	background: #cfc;
+}
+
+.DifferencesSideBySide .ChangeDelete td.Left {
+	background: #f88;
+}
+
+.DifferencesSideBySide .ChangeDelete td.Right {
+	background: #faa;
+}
+
+.DifferencesSideBySide .ChangeReplace .Left {
+	background: #fe9;
+}
+
+.DifferencesSideBySide .ChangeReplace .Right {
+	background: #fd8;
+}
+
+.Differences ins, .Differences del {
+	text-decoration: none;
+}
+
+.DifferencesSideBySide .ChangeReplace ins, .DifferencesSideBySide .ChangeReplace del {
+	background: #fc0;
+}
+
+.Differences .Skipped {
+	background: #f7f7f7;
+}
+
+.DifferencesInline .ChangeReplace .Left,
+.DifferencesInline .ChangeDelete .Left {
+	background: #fdd;
+}
+
+.DifferencesInline .ChangeReplace .Right,
+.DifferencesInline .ChangeInsert .Right {
+	background: #dfd;
+}
+
+.DifferencesInline .ChangeReplace ins {
+	background: #9e9;
+}
+
+.DifferencesInline .ChangeReplace del {
+	background: #e99;
+}
+
+pre {
+	width: 100%;
+	overflow: auto;
+}