Cross browser background opacity

If you want to create a semi-transparent background you can either use png image files or use this useful css:


background: rgba(0,0,0,0.6);
filter: progid:DXImageTransform.Microsoft.gradient(startColorstr=#99000000, endColorstr=#99000000);
-ms-filter: "progid:DXImageTransform.Microsoft.gradient(startColorstr=#99000000, endColorstr=#99000000)";