#ac-wrapper {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 90%;
    background: #ffffff ; /**url("images/pop-bg.png") repeat top left transparent; **/
    z-index: 1001;
}
#popup {
    background: none repeat scroll 0 0 #FFFFFF;
    border-radius: 4%;
    -moz-border-radius: 4%;
    -webkit-border-radius: 4%;
    height: 55%;
    margin: 5% auto;
    position: relative;
    width: 70%;
}