Fixed a broken button

Author: Dervisevic

gh-pages-files/color-main.css

@@ -28,7 +28,7 @@ ul.add-ons li:hover { background:#f9f9f9; }
 
 .demo { background:#f6f6f6; }
 
-demo a.btn { color:#fff; background:#ffda47; }
+.demo a.btn { color:#fff; background:#ffda47; }
 
 pre.model, pre.install { color:#ff5182; }