packer-cn/website/source/layouts/intro.erb

<% wrap_layout :inner do %>
	<% content_for :sidebar do %>
		<h2>Intro</h2>

		<ul>
			<li><h4>About</h4></li>
			<li><a href="/intro/index.html">What is Packer?</a></li>
			<li><a href="/intro/why.html">Why Use Packer?</a></li>
			<li><a href="/intro/use-cases.html">Use Cases</a></li>
			<li><a href="/intro/platforms.html">Supported Platforms</a></li>
		</ul>

		<ul>
			<li><h4>Getting Started</h4></li>
			<li><a href="/intro/getting-started/setup.html">Install Packer</a></li>
			<li><a href="#">Build an Image</a></li>
			<li><a href="#">Provision</a></li>
			<li><a href="#">Parallel Builds</a></li>
			<li><a href="#">Post-Process</a></li>
		</ul>
	<% end %>
	<%= yield %>
<% end %>