.uploading{
    position: absolute;
    top: 0;
    left: 0;
    width: 1400px;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.2);
}

._uploadimg{
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100px;
    height: 100px;
    margin-left: -50px;
    margin-top: -50px;
    z-index: 9999;
}