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@use "sass:math";

/// Create a triangle with CSS.
/// @link https://sass-lang.com/documentation/at-rules/control/if#else-if
@mixin triangle($size, $color, $direction) {
  height: 0;
  width: 0;

  border-color: transparent;
  border-style: solid;
  border-width: math.div($size, 2);

  @if $direction == up {
    border-bottom-color: $color;
  } @else if $direction == right {
    border-left-color: $color;
  } @else if $direction == down {
    border-top-color: $color;
  } @else if $direction == left {
    border-right-color: $color;
  } @else {
    @error "Unknown direction #{$direction}.";
  }
}