响应式布局简易自适应页面代码
<header>
<div id="pagewrap">
<header id="header">
<hgroup>
<h1 id="site-logo">Demo</h1>
<h2 id="site-description">Site Description</h2>
</hgroup>
<nav>
<ul id="main-nav">
<li><a href="#">Home</a></li>
</ul>
</nav>
<form id="searchform">
<input type="search">
</form>
</header>
<div id="content">
<article> blog post</article>
</div>
<aside id="sidebar">
<section> widget</section>
</aside>
<footer id="footer"> footer</footer>
</div>
</header>