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@mixin vertical-align($position: relative) {
  position: $position;
  top: 50%;
  -webkit-transform: translateY(-50%);
      -ms-transform: translateY(-50%);
          transform: translateY(-50%);
}

.element p {
  @include vertical-align();
}

// Sass Mixin

@mixin centerer($horizontal: true, $vertical: true) {
	position: absolute;
	@if ($horizontal and $vertical) {
		top: 50%;
		left: 50%;
		transform: translate(-50%, -50%);
	} @else if ($horizontal) {
		left: 50%;
		transform: translate(-50%, 0);
	} @else if ($vertical) {
		top: 50%;
		transform: translate(0, -50%);
	}
}

.parent-element {
  -webkit-transform-style: preserve-3d;
     -moz-transform-style: preserve-3d;
          transform-style: preserve-3d;
}

.element {
  position: relative;
  top: 50%;
  transform: translateY(-50%);
}