             resultString += key+"{"
             for (cssProp, val) in props
             {
-                resultString += "\(cssProp):\(val);"
+                if(key != ".hljs" || (cssProp.lowercaseString != "background-color" && cssProp.lowercaseString != "background"))
+                {
+                    resultString += "\(cssProp):\(val);"
+                }
             }
             resultString+="}"
         }

        if (cString.hasPrefix("#"))
        {
            cString = (cString as NSString).substringFromIndex(1)
        }
        
        if (cString.characters.count != 6 && cString.characters.count != 3 )

            return NSFontAttributeName
        case "font-style":
            return NSFontAttributeName
        case "background-color":
            return NSBackgroundColorAttributeName
        default:
            return NSFontAttributeName
        }
