Vertical Align Sass Mixins

Vertically and horizontally center relative positioned elements

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

Vertically and horizontally center absolute positioned elements

@mixin absolute_vertical_align()
{
	position: absolute;
	top: 50%;
	left: 50%;
	-webkit-transform: translate(-50%, -50%);
	-moz-transform: translate(-50%, -50%);
	-ms-transform: translate(-50%, -50%);
	-o-transform: translate(-50%, -50%);
	transform: translate(-50%, -50%);		
}

You get the Gist