.scrollToTop {
    color: #fff;
    outline: 0;
    width: 60px;
    height: 60px;
    line-height: 60px;
    text-align: center;
    font-weight: 700;
    text-decoration: none;
    position: fixed;
    border-radius: 4px;
    bottom: 30px;
    right: 30px;
    z-index: 9999;
    background: url(assets/css/images/up_btn.png) 20% center no-repeat rgba(0,0,0,.5);
    cursor: pointer;
}

.scrollToTopTitle {
    position: absolute;
    margin-top: -22px;
    right: -30px;
    line-height: 20px;
    border-radius: 0;
    font-size: 13px;
    color: #777;
    width: 120px;
    cursor: pointer;
}