#ac-wrapper {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, .6);
    z-index: 1001;
}
#popup {
   /* width: 555px;
    height: 375px;*/
    width: 800px;
    height: 550px;
    background: #FFFFFF;
    border: 1px solid #000;
    border-radius: 5px;
    -moz-border-radius: 5px;
    -webkit-border-radius: 5px;
    box-shadow: #64686e 0px 0px 3px 3px;
    -moz-box-shadow: #64686e 0px 0px 3px 3px;
    -webkit-box-shadow: #64686e 0px 0px 3px 3px;
    position: relative;
    top: 50px;
    left: 375px;
    left: 20%;
}