/* 返回顶部 */

button#go-up #percent {
    display: none;
    font-weight: bold;
    font-size: 15px !important;
}

button#go-up span {
    font-size: 12px!important;
    margin-right: -1px;
}

/* 鼠标滑动到按钮上时显示返回顶部图标 */
button#go-up:hover i {
    display: block !important;
}

button#go-up:hover #percent {
    display: none !important;
}