.hidden-xs
@media (max-width 48em)
display none !important
.hidden-sm
@media (min-width 48em) and (max-width 64em)
display none !important
.hidden-md
@media (min-width 64em) and (max-width 75em)
display none !important
.hidden-lg
@media (min-width 75em)
display none !important