媒体查询

@media screen and (max-width:800px) {
    .wrap{
        width: 100%;
        .tracking-feature{
        width: 99%;
        }
    }
  }
@media screen and (min-width:1200px) {
    .tracking-feature:hover{
        box-shadow: 0 0 2px 1px rgb(100, 100, 100);
    }
    .wrap{
        background-image: url(~@/assets/img/pc_tpbg.png);
    }
  }
@media only screen and (min-width: 800px) and (max-width: 1199px)  {
.wrap{
    background-color: @bg-black-rgb;
    width: 100%;
}
}