.alpha60 {/* Fallback for web browsers that don't support RGBa */
background-color: rgb(0,0,0);/* RGBa with 0.6 opacity */
background-color: rgba(0,0,0,0.6);/* For IE 5.5 - 7*/
filter:progid:DXImageTransform.Microsoft.gradient(startColorstr=#99000000,
endColorstr=#99000000);
/* For IE 8*/-ms-filter:"progid:DXImageTransform.Microsoft.gradient(startColorstr=#99000000,