@media (min-width: 320px) and (max-width: 1023px) {
  #myMenu {
    display: none;
  }
  .index_yingyong_content {
    float: none;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: justify;
        -ms-flex-pack: justify;
            justify-content: space-between;
    -ms-flex-wrap: wrap;
        flex-wrap: wrap;
  }
  .index_yingyong_content .hover {
    width: 50%;
    max-width: 50%;
    height: 12rem;
  }
}