@media screen and (min-width:1400px) {.webhd{display:block;}}
@media screen and (min-width:1024px) and (max-width:1399px) {.webd{display:block;}}
@media screen and (min-width:640px) and (max-width:1023px) {.webt{display:block;}}
@media screen and (max-width:639px) {.webm{display:block;}}
section>div:not(.header,.footer,.burger){min-height:100%;}