#popup0 { z-index:999;left:20px; top:100px; position: absolute; display:none;width:400px;background:#222;}
  .popupimgs{width:100%;}
  .popupimgs img{width:100%; max-width:100%; height:auto;}

  .btn_closex{font-size:13px; padding:8px; }
  .btn_closex a{display:inline-block; text-decoration:none; color:#fff;}

  @media (max-width: 768px){
  #popup0{max-width:60%; top:170px;}

  }