.popup {
  @include triangle(
    $gray-lighter,
    $gray-darker,
    $popup-triangle-size,
    $popup-triangle-border-size
  );

  padding: $gl-padding;
  background-color: $gray-lighter;
  border: 1px solid $gray-darker;
  border-radius: $border-radius-default;
  box-shadow: 0 5px 8px $popup-box-shadow-color;
  position: relative;
}