diff --git a/rhodecode/public/css/diff.css b/rhodecode/public/css/diff.css
--- a/rhodecode/public/css/diff.css
+++ b/rhodecode/public/css/diff.css
@@ -117,4 +117,13 @@ cursor: pointer;
 .line{
 	padding:0;
 	margin:0;
-}
\ No newline at end of file
+}
+
+.line.highlight{
+	background-color:#FFFFCC;
+	cursor: pointer;
+	background-image:url("../images/icons/comment_add.png");
+	background-repeat:no-repeat;
+	background-position: right;
+	background-position: 100% 50%;
+}