.sert-modal{display:none;position:fixed;z-index:1;padding-top:100px;left:0;top:0;width:100%;height:100%;overflow:auto;background-color:#000;background-color:rgba(0,0,0,.4)}.sert-modal-content{background-color:#fefefe;margin:auto;padding:40px;border:1px solid #888;width:454px;height:550px;border-radius:12px}.sert-close{color:#aaa;float:right;font-size:28px;font-weight:700}.sert-close:focus,.sert-close:hover{color:#000;text-decoration:none;cursor:pointer}