HTML код

<!DOCTYPE html>
<html>
	<head>
		<meta content="text/html; charset=UTF-8" http-equiv="Content-Type">
		<title> Liquid Three Colomn Layout </title>
		<link rel="stylesheet" type="text/css" href="layout.css">
		<link rel="stylesheet" type="text/css" href="header-layout.css">
		<link rel="stylesheet" type="text/css" href="nav-container.css">
		<link rel="stylesheet" type="text/css" href="containers.css">
	<head>

	<body>
	<section id="main-container">
	<header id="header-container">
		<h1>
			Renewable energy
		</h1>
	</header>

	<nav id="hr-navigation">
		<ul>
			<li><a href="#">Home</a></li>
			<li><a href="#">About</a></li>
			<li><a href="#">Solar power</a></li>
			<li><a href="#">Wind power</a></li>
			<li><a href="#">Hydroelectricity</a></li>
			<li><a href="#">Biomas</a></li>


			<li><a href="#">Contact us</a></li>
		</ul>
	</nav>

	<section id="common-container">
			<section id="content-container">
				<aside id="left-container">
					<ul>
						<li><a href="#">Section page 1</a></li>
						<li><a href="#">Section page 2</a></li>
						<li><a href="#">Section page 3</a></li>
						<li><a href="#">Section page 4</a></li>
					</ul>
				</aside>

				<section id="center-container">
					<h2>
						Page heading
					</h2>
					<p>
						Lorem ipsum dolor sit amet consect etuer adipi scing elit sed diam nonummy nibh euismod tinunt ut laoreet dolore magna aliquam erat volut. Ut wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat. Duis autem vel eum iriure dolor in hendrerit in vulputate velit esse molestie consequat, vel illum dolore eu feugiat nulla facilisis at vero eros et accumsan et iusto odio dignissim qui blandit praesent luptatum zzril delenit augue duis dolore te feugait nulla facilisi.
					</p>
					<p>
						Ut wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat. Duis autem vel eum iriure dolor in hendrerit in vulputate velit esse molestie consequat, vel illum dolore eu feugiat nulla facilisis at vero eros et accumsan et iusto odio dignissim qui blandit praesent luptatum zzril delenit augue duis dolore te feugait nulla facilisi. Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat.
					</p>
					<p>
						Duis autem vel eum iriure dolor in hendrerit in vulputate velit esse molestie consequat, vel illum dolore eu feugiat nulla facilisis at vero eros et accumsan et iusto odio dignissim qui blandit praesent luptatum zzril delenit augue duis dolore te feugait nulla facilisi. Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat. Ut wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat.
					</p>
				</section>
				<aside id="aside">
					<h3>
						Aside heading
					</h3>
					<p>
						Duis autem vel eum iriure dolor in hendrerit in vulputate velit esse molestie consequat, vel illum dolore eu feugiat nulla facilisis at vero eros et accumsan.
					</p>
				</aside>

				<footer id="footer">
					Copyright © Site name, 2013
				</footer>
			</section>

		</section>

	</section>
	</body>
</html>