diff --git a/stylesheets/application.scss b/stylesheets/application.scss
index 18543f5..721228c 100644
--- a/stylesheets/application.scss
+++ b/stylesheets/application.scss
@@ -449,3 +449,22 @@ div.journal ul.details {
 .project-prod-eo #main-menu li a.new-issue {
 	display: none;
 }
+
+/* syntax highlighting */
+
+.syntaxhl {
+	.head {
+		background: transparent;
+		color: inherit;
+		.head, .filename {
+			color: inherit;
+		}
+	}
+	.change {
+		background: transparent;
+		color: #369;
+		.change {
+			color: inherit;
+		}
+	}
+}