// Mixins

@function divide-width($colnum) {
  @return 100%/($cols/$colnum);
}


@mixin respondingcols($desktop-columns, $tablet-columns: $desktop-columns, $mobile-columns: 1, $small-break: 0px, $medium-break: $tablet-device-width, $large-break: $row-max-width) {

  // These styles apply to all shift-columns
  display: inline-block;
  float: left;
  padding-left: $gutter / 2;
  padding-right: $gutter / 2;

  // IE8 fallback


  @include respond("min-width: #{$small-break}") {
    width: divide-width($mobile-columns);
  }

  @include respond("min-width: #{$medium-break}") {
    width: divide-width($tablet-columns);
  }

  @include respond("min-width: #{$large-break}") {
    width: divide-width($desktop-columns);
  }

}