.preview-tip {
    position: fixed;
    top: 0;
    width: 100%;
    height: 1.05rem;
    line-height: 1.05rem;
    background-color: #FFEEEE;
    font-size: 0.35rem;
    color: #F23030;
    text-align: center;
    z-index: 9999;
}