css layout

style_2.scss

@mixin size_col($width: auto, $height: auto, $background: #e3e3e3) {
	width: $width;
	height: $height;
	background: $background;
}

.wrap {
	min-width: 600px;
	@include size_col(80%, auto, green);
	margin: auto;
	overflow: hidden;

	h1 {
		text-align: center;
	}

	.content {
		@include size_col(70%, 600px, brown);
		float: left;


	}

	aside {
		@include size_col(30%, 600px);
		float: left;
		ul {
			list-style: none;
			padding: 0;
		}
	}
	
}