body {
 background: red;
}
 
@media screen and (min-width: 480px) {
 body {
  background: yellow;
 }
}
 
@media screen and (min-width: 768px) {
 body {
  background: green;
 }
}
 
@media screen and (min-width: 1024px) {
 body {
  background: blue;
 }
}
 
@media screen and (min-width: 1200px) {
 body {
  background: gray;
 }
}