.loading-img {
  background: url(https://s21.ax1x.com/2025/05/12/pEXkRIO.jpg) no-repeat center center;
  background-size: cover;
}
/* 返回顶部 */


button#go-up span:nth-child(2) {
    font-size: 12px!important;
    margin-right: -1px;
}
/* 返回顶部 */
button#go-up #percent {
    display: none;
    /*font-weight: bold;*/
    font-size: 16px !important;
}

/* 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;
}

#rightside > div > button,
#rightside > div > a {
    border-radius: 50%;
    display: flex;
    align-items: center;
    -webkit-box-align: center;
    -webkit-box-pack: center;
    justify-content: center;
}