/*320px*/
@media screen and (min-width:320px) and (max-width:767px) {

}
/*768px*/
@media screen and (min-width:768px) and (max-width:1023px) {

}
/*1200px*/
@media screen and (min-width: 1280px) and (max-width:1439px) {

}
/*1400px*/
@media screen and (min-width: 1440px) {

}