@media only screen and (max-width: 991px) {
    .banner_h {
        padding-top: 35px !important;
    }
}

@media only screen and (max-width: 640px) {

    .heading_m{
        font-size: 22px !important;
        line-height: 40px;
    }
    .heading{
        font-size: 40px;
    }
    .main{
        padding: 15% 0 ;
    }

}