// ==================================================
// Shift
// ==================================================
@mixin shift($_columns: 1, $_percent: true) {
  $_shift: column-width($_columns, $_percent) + gutter-width($_percent);

  margin-left: $_shift;
}

// ==================================================
// Shift
// ==================================================
@mixin shift($_columns: 1, $_percent: true) {
  $_margin: left;

  @if $grid-rtl == true {
    $_margin: right;
  }

  $_shift: column-width($_columns, $_percent) + gutter-width($_percent);

  margin-#{$_margin}: $_shift;
}

Fix shift mixin to respect rtl.
Fix shift mixin to respect rtl.
