.close-button {
	@size: 50px;
	height: @size;
  width: @size;
  position: relative;
	box-sizing: border-box;
	line-height: @size;
	display: inline-block;

	&:before, &:after {
		@width: 50px;
		@height: 10px;
		transform: rotate(-45deg);
		content: '';
		position: absolute;
		top: 50%;
		left: 50%;
		margin-top: -@height/2;
		margin-left: -@width/2;
		display: block;
		height: @height;
		width: @width;
		background-color: #fff;
		transition: all 0.2s ease-out;
	}

	&:after {
		transform: rotate(45deg);
	}

	&:hover {

		&:before, &:after {
			transform: rotate(0deg);
		}
	}
}

body {
  color: #fff;
  font-family: arial, sans-sarif;
  background-color: #333;
  text-align: center;
}