Breakpoint Mixin code example

Example: Breakpoint Mixin

@mixin breakpoint($class) {  @if $class == xs {    @media (max-width: 767px) { @content; }  }   @else if $class == sm {    @media (min-width: 768px) { @content; }  }   @else if $class == md {    @media (min-width: 992px) { @content; }  }   @else if $class == lg {    @media (min-width: 1200px) { @content; }  }   @else {    @warn "Breakpoint mixin supports: xs, sm, md, lg";  }}