dialog{background:#fff;border:none;border-radius:8px;height:326px;margin:auto;max-width:100%;padding:20px;position:relative;width:490px}dialog::backdrop{background-color:rgba(0,0,0,.5)}.close-x-btn{background:none;border:none;color:#333;cursor:pointer;font-size:24px;line-height:1;position:absolute;right:10px;top:10px;z-index:10}dialog img{display:block;height:100%;-o-object-fit:cover;object-fit:cover;width:100%}