.desktop_img{
    display: block;
}
.mobile_img{
    display: none;
}

@media screen and (max-width: 767px) {

    .desktop_img {
        display: none;
    }
    .mobile_img {
        display: block;
    }
}
@media only screen and (orientation: landscape) and (min-device-width: 480px) and (max-device-width: 880px) {
    .desktop_img {
        display: block;
    }
    .mobile_img {
        display: none;
    }
}