stickCenter(){
	position: absolute;
	left: 50%;
	top: 50%;
	transform: translate(-50%, -50%);

}
stickCenterH(){
	position: absolute;
	left: 50%;
	transform: translateX(-50%);

}
stickCenterV(){
	position: absolute;
	top: 50%;
	transform: translateY(-50%);

}
stickCenter($top, $right, $bottom, $left){
	position: absolute;
	top: $top;
	right: $right;
	bottom: $bottom;
	left: $left;
	margin: auto;

}
square($length){
	width: $length; height: $length;

}
goldenRectL($width){
	width: $width;
	height: ceil($width/1.61803398875);

}
goldenRectP($width){
	width: $width;
	height: ceil($width*1.61803398875);

}
wDiagonal($length){
	width: ceil(math(2*$length*$length, 'sqrt'));

}
hDiagonal($length){
	height: ceil(math(2*$length*$length, 'sqrt'));

}