triangle/triangle.scss at master · fonzie/triangle · GitHub

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@mixin fz-triangle($direction, $width, $height, $color) {
  width: 0;
  height: 0;
  border-style: solid;
  border-color: transparent;
  @if $direction == "north" {
    border-width: 0 $width / 2 $height $width / 2;
    border-bottom-color: $color;
  }
  @if $direction == "north-east" {
    border-width: 0 $width $height 0;
    border-right-color: $color;
  }
  @if $direction == "east" {
    border-width: $height / 2 0 $height / 2 $width;
    border-left-color: $color;
  }
  @if $direction == "south-east" {
    border-width: 0 0 $height $width;
    border-bottom-color: $color;
  }
  @if $direction == "south" {
    border-width: $height $width / 2 0 $width / 2;
    border-top-color: $color;
  }
  @if $direction == "south-west" {
    border-width: $height 0 0 $width;
    border-left-color: $color;
  }
  @if $direction == "west" {
    border-width: $height / 2 $width $height / 2 0;
    border-right-color: $color;
  }
  @if $direction == "north-west" {
    border-width: $height $width 0 0;
    border-top-color: $color;
  }
}