1@function breakpoint($breakpoint) {
2  @if $breakpoint == $document-width {
3    @return $document-width - 1;
4  }
5  @if $breakpoint == $tablet-device-width {
6  	@return $tablet-device-width - 1;
7  }
8  @if $breakpoint == $min-device-width {
9  	@return $min-device-width + 1;
10  }
11}