cb_admin/css/user/add.less

.layui-body{
    .main{
        padding: 15px;
        box-sizing: border-box;
    }
    .img-box{
        display: block;
        width: 100px;
        height: 100px;
        position: relative;
        &>img{
            max-width: 100%;
        }
        #chooseImage{
            position: absolute;
            width: 100%;
            height: 100%;
            display:none;
        }
    }
}