@mixin sm {

@media (min-width: #{$device-sm-min}) {
    @content
}

}

@mixin md {

@media (min-width: #{$device-md-min}) {
    @content
}

}

@mixin lg {

@media (min-width: #{$device-lg-min}) {
    @content
}

}

@mixin xl {

@media (min-width: #{$device-xl-min}) {
    @content
}

}