Fix css errors

In css/admin.css, cellpadding and cellspacing are not valid css, so
replace them with the correct css equivalent.

In css/product.css, simply remove an extra 6 on color.

css/admin.css

@@ -1514,8 +1514,8 @@ html[xmlns] .clearfix {
 
 #table_customer{
 	border:1px solid #ccc;
-	cellpadding: 0;
+	padding: 0px;
-	cellspacing: 0;
+	border-spacing: 0px;
 	border-radius:3px;
 	background-color:#fff;
 }

themes/default/css/product.css

@@ -446,7 +446,7 @@ span.view_scroll_spacer {
 	width:260px;
 	border:1px solid #ccc;
 	font-size:12px;
-	color:#6666;
+	color:#666;
 }
 
 #send_friend_form .submit {