@media all and (min-width: 600px) { /* Your CSS for PHONE goes here */ }
@media all and (min-width: 800px) { /* Your CSS for IPAD goes here */ }
@media only screen and (min-width: 992px) { /* Your CSS for DESKTOP goes here */ }
@media only screen and (orientation: landscape) and (max-width: 800px) { /* Your CSS for PHONE (Landscape) goes here */ }