.popup {
        border: solid 1px #333;
        font-family: Tahoma, Verdana, Arial, Helvetica, sans-serif;
        font-size: 12px;
        display: none;
        position: absolute;
        width: 650px;
        z-index: 60;
      }

      .popuptitle {
        background: #666;
        color: white;
        font-weight: bold;
        height: 15px;
        padding: 5px;
      }
      
      .popupbody {
        background: #ddd;
        padding: 5px;
        text-align: center;
      }

      #popup {
top: 50px;
width:650px; 
left:50%; 
margin-left:-325px; 
}