.modalPopup 
{ 
    border-right: gray 3px solid; 
    padding-right: 3px; 
    border-top: gray 3px solid; 
    padding-left: 3px; 
    padding-bottom: 3px; 
    border-left: gray 3px solid; 
    padding-top: 3px; 
    border-bottom: gray 3px solid; 
    background-color: #ffffff; 
}

.modalBackground 
{ 
    background-color: Gray;

    /* for IE */
    filter:alpha(opacity=80);
    /* CSS3 standard */
    opacity:0.8;

}