Supple reworked mobile thumbnails

@media screen and (max-width: 939px) {
    #top_banner .inner,
    #portfolio_index .inner,
    #pagination .inner,
    #outgoing .inner,
    #content_info .inner,
    #footer_bottom .inner,
    .portfolio_single .inner,
    .filter_notice .inner,
    .site_section .inner {
        width: 90%;
    }
}

@media screen and (max-width: 939px) {
    #portfolio_index .grid_sizer,
    #portfolio_index .grid_block {
        width: 33.3333% !important;
    }
}

@media screen and (max-width: 479px) {
    #portfolio_index .grid_sizer,
    #portfolio_index .grid_block {
        width: 50% !important;
    }
}