Use same commit link style everywhere

static/base.css

@@ -51,6 +51,13 @@ td+td {
     padding-left: 2ch;
 }
 
+.reachable {
+    color: #777;
+}
+
+.orphaned {
+    color: #a33;
+}
 
 /* Nav bar */
 
@@ -115,16 +122,6 @@ nav img {
     column-gap: 1ch;
 }
 
-.commit .reachable,
-.commit .reachable a {
-    color: #777;
-}
-
-.commit .orphaned,
-.commit .orphaned a {
-    color: #a33;
-}
-
 .commit pre {
     margin: 1em 0ch 1em 4ch;
     white-space: pre-wrap;