.fresh_air {
    margin-left: 0 !important;
}
.fresh_air div{
    font-size: 0;
    max-width: 1920px;
    margin: 0 auto;
}
.fresh_air div img{
    max-width: 100%;
}
.fresh_air_block2{
    position: relative;
}
.fresh_air_block2 ul{
    display: flex;
    font-size: 0;
    position: absolute;
    top: 8.7%;
    padding: 0;
    width: 100%;
    justify-content: center;
}
.fresh_air_block2 ul a{
    display: block;
    width: 160px;
    height: 42px;
    margin: 0 5px;
}