virtuemart add to cart popup style sheet

On virtuemart shopping cart joomla component add to cart popup normally used to show virtuemart system error, info, warning, tips etc message.
This popup is build by javascript code in components/com_virtuemart/js/mootools/mooPrompt.js file.
The generated html code looks as below

    

        

        
Notice
        

            
Success
            

                

                    

                    Info: The product quantity has been updated.

                
            
        
        

        

            
            
        
    

To modify it’s stylesheet you can use

/*popup*/

h3.cbHeader {
    visibility:hidden;
    display:block;
    clear:both;
    width:1px;
    height:1px
}


.cbContainer{
    position: absolute;
    left: 50%;
    top: 450px;
    width: 400px;
    margin-left: -200px;
    margin-right: -200px;
    height: 150px;
    margin-top: -75px;
    margin-bottom: -75px;
    border:#FFF 3px solid;
    text-align:left;
}

.cbBox{
    width: 400px;
    overflow-x: auto;
    overflow-y: auto;
    height: 150px;
    visibility: visible;
    zoom: 1;
    opacity: 1;
    background:#CCC;
    color:#333
    text-indent:0;
}
.cbButtons .cbButton{
    background:#63839b none;
    text-indent:0;
    width:80px; height:28px;
    margin:5px 10px;
    color:#FFF;
    font-weight:bold;
    text-decoration:none;
    text-transform:upper;
    border:0;
    cursor:pointer;
    border-radius:3px;

}
.shop_error, .shop_warning, .shop_info, .shop_debug, .shop_critical, .shop_tip {
    border-color:#333;
    border-style:dotted none;
    border-width:1px 0pt;
    padding:15px;
    margin:15px 0 15px 0;
    text-align:left;

}

.cbCloseButton{
    right:5px;
    top:5px;
}