Simplify style and make output more legible

- Combines and removes some redundancy.
- Makes <hr> softer by using dashed lines.
- Removes <a> underlines since the file/log view
  have tons of links and reading them is a bit
  distracting. Underlines are added on hover.
- Makes diff headers darkcyan to match the default
  command line colors and not conflict with new
  <a> style.

style.css

@@ -5,6 +5,7 @@ body {
 }
 
 h1, h2, h3, h4, h5, h6 {
+	font-size: 1em;
 	margin: 0;
 }
 
@@ -12,6 +13,14 @@ img, h1, h2 {
 	vertical-align: middle;
 }
 
+a {
+	text-decoration: none;
+}
+
+a:hover {
+	text-decoration: underline;
+}
+
 table thead td {
 	font-weight: bold;
 }
@@ -24,39 +33,35 @@ table td {
 	background-color: #eee;
 }
 
-h1, h2, h3, h4, h5, h6 {
-	font-size: 1em;
-}
-
 .desc {
-	font-size: 100%;
 	color: #777;
 }
 
 hr {
-	color: #777;
-	background-color: #777;
 	border: 0;
-	border-top: 1px solid #777;
+	border-top: 1px dashed #777;
 }
 
 pre {
 	font-family: monospace;
 }
 
-pre span.h {
-	color: blue;
+pre .h {
+	color: darkcyan;
 }
 
-pre span.i {
+pre .i {
 	color: green;
 }
 
-pre span.d {
+pre .d {
 	color: red;
 }
 
 pre span a {
-	text-decoration: none;
 	color: inherit;
 }
+
+pre span a:hover {
+	text-decoration: none;
+}