/** Desktop */
.wpc-dfp-twobytwo { display:none; }
.wpc-dfp-twobyone { display:block; }
.wpc-dfp-onebyone { display:block; }

/** 1x1 ad only displays on Desktops bigger enough for it be viewable. */
@media ( max-width:1280px ) {
    .archive .wpc-dfp-onebyone { display:none; }
    .home .wpc-dfp-onebyone { display:none; }
}

/** 2x2 slot should only display on Tablets. */
@media ( max-width:1024px ) {
    .wpc-dfp-twobytwo { display:block; }
}