.UIBackTopTopControl {
        background: rgba(0, 0, 0, 0) url(images/up.png) no-repeat scroll center center;
        z-index: 999999999;
        position: fixed;
        bottom: 63px;
        right: 100px;
        width: 55px;
        height: 55px;
        background-repeat: no-repeat;
        background-size: cover;
        opacity: .8 !important;
        display: block !important;
}
div#logo {
        min-width: 55px;
        min-height: 55px;
        max-width: 55px;
        max-height: 55px;
        bottom: 0px !important;
        right: 100px !important;
        border-radius: 50% !important;
        overflow: hidden;
        opacity: 0.8;
}


div#logo img{
        max-width: 100%;
}