gistfile1.txt

@media (max-width: $screen-xs-max) { ... }
@media (min-width: $screen-sm-min) { ... }
@media (max-width: $screen-sm-max) { ... }
@media (min-width: $screen-md-min) { ... }
@media (max-width: $screen-md-max) { ... }
@media (min-width: $screen-lg-min) { ... }