Eric's Bleed Mixin

Susy Bleed

@mixin bleed($padding: $grid-padding, $sides: left right) {
  @if $sides == 'all' {
    margin: - $padding;
    padding: $padding;
  } @else {
    @each $side in $sides {
      margin-#{$side}: - $padding;
      padding-#{$side}: $padding;
    }
  }
}