.oa_error{
    width:10rem;
    height:10rem;
    position: fixed;
    top:50%;
    margin-top:-5.5rem;
    left:50%;
    margin-left:-5rem;
    text-align: center;
}
.error_text{
    display: inline-block;
    margin-top:0.5rem;
    font-size:0.53rem ;
    color:#666;
}