#back-to-top {
    background-color:#ccc;
    box-shadow: 0;
    color: #ccc;
    padding: 10px 10px;
    position: fixed;
    bottom: 30px;
    right: 20px;
    cursor: pointer;
    z-index: 9999;
    opacity: 0.6;
}
#back-to-top:hover {opacity: 1.0;}

.gotop {
    background: url(../images/foodshow/gotop.jpg) no-repeat;
    width: 60px;
    height: 60px;
    position: fixed;
    bottom: 20px;
    right: 0;
    opacity: 0.4;
}
.gotop:hover{opacity: 1.0;}