@media (max-width: 768px) {
    .site-main-content{
        flex-direction: column;
        align-items: stretch;
        padding-left: 0px;
        padding-right: 0px;
    }
    .download-item-wrap{
        width: 100%;
        background: none;
    }
    .download-left{
        width: 100%;
    }
    .download-right{
        padding:0px;
        padding-top:20px;
    }
    .download-item-wrap img{
        max-width: 180px;
    }
}