Corrected minor error that disabled 2 of the overlay colors

web/quack.css

@@ -287,7 +287,7 @@ table.imagelinks th + th
 .g10 { background-color: #FFFFAA; }
 .g11 { background-color: #AAFFFF; }
 .g12 { background-color: #FFAAFF; }
-.
+
 .g13 { background-color: #FF00AA; }
 .g14 { background-color: #00FFAA; }
 .g15 { background-color: #00AAFF; }
@@ -298,7 +298,7 @@ table.imagelinks th + th
 .g19 { background-color: #FFFF55; }
 .g20 { background-color: #55FFFF; }
 .g21 { background-color: #FF55FF; }
-.
+
 .g22 { background-color: #FF0055; }
 .g23 { background-color: #00FF55; }
 .g24 { background-color: #0055FF; }