@media screen and (max-width: 800px) {
  .vuwu,
  .vuwu_slide,
  .vuwu_slide .ohbox,
  .header,
  .nav,
  .wrap {
    width: 100% !important;
  }
  .vuwu ul li {
    width: 100% !important;
    float: unset !important;
  }
}