@media only screen and (max-width: 767px) {body:after { display: none; content: "smartphone"; }}@media only screen and (min-width : 768px) and (max-width: 1023px) {body:after { display: none; content: "tablet"; }}@media only screen and (min-width : 1024px) and (max-width: 1439px) {body:after { display: none; content: "laptop"; }}@media only screen and (min-width : 1440px) {body:after { display: none; content: "desktop"; }}