diff --git a/static/mo.css b/static/mo.css
index dec13006ac04a3a4b4393624fa95db3c9aeca644..2de94b237bc204eea24c2b1fa0dd34d39cc92880 100644
--- a/static/mo.css
+++ b/static/mo.css
@@ -139,6 +139,14 @@ table tbody tr.winner:hover { background-color: #dc3; }
 table tbody tr.successful { background-color: #9e9; }
 table tbody tr.successful:hover { background-color: #7c7; }
 
+table.greyhead thead {
+	background-color: #aaa;
+}
+
+table.greyhead thead tr th {
+	border: none;
+}
+
 nav#main-menu {
 	display: flex;
 	flex-wrap: wrap;