#ajax-container {
    position: fixed;
    z-index: 999999;
    top: 200px;
    left: 500px;
    background-image: url("100.gif") !important;
    width:100px; height:100px;
    /*width:200px; height:200px;*/ 
}

#ajax-container-detail {
    background-image: url("45.gif") !important;
    z-index: 999999;
    width:45px; height:45px;
    margin: 0 auto;
}