/*
.UIBackTopTopControl {
    background: url("images/top.png") no-repeat scroll center center rgba(0, 0, 0, 0);
     bottom: 125px;
    height: 50px;
    position: fixed;
    right: 35px;
    width: 50px;
    z-index: 10;
}*/
.UIBackTopTopControl{
    background: url(https://storage-vnportal.vnpt.vn/cmu-khdn/1/HinhAnh/backtotop.png) no-repeat 0 0;;
    bottom: 20px;
    cursor: pointer;
    display: none;
    height: 88px;
    position: fixed;
    right: 20px;
    text-indent: -9999px;
    width: 64px;
    z-index: 999;
}
.UIBackTopTopControl:hover{
        background-position: 0 bottom;
}