In-page table of contents

Consult the guidance for the in-page table of contents.

Code

<nav role="navigation" class="gc-toc">
	<h3>On this page</h3>
	<ul>
		<li><a href="#section1">First section heading</a></li>
		<li><a href="#section2">Second section heading</a></li>
		<li><a href="#section3">Third section heading</a></li>
	</ul>
</nav>
<section>
	<h3 id="section1">[First section heading]</h3>
	<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Quam delectus iusto repellat assumenda nobis, modi accusamus, rerum praesentium ad dignissimos ipsam? Facilis repellat, quibusdam qui? Et dolore ipsa ut repellendus.</p>
</section>
<section>
	<h3 id="section2">[Second section heading]</h3>
	<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Quam delectus iusto repellat assumenda nobis, modi accusamus, rerum praesentium ad dignissimos ipsam? Facilis repellat, quibusdam qui? Et dolore ipsa ut repellendus.</p>
</section>
<section>
	<h3 id="section3">[Third section heading]</h3>
	<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Quam delectus iusto repellat assumenda nobis, modi accusamus, rerum praesentium ad dignissimos ipsam? Facilis repellat, quibusdam qui? Et dolore ipsa ut repellendus.</p>
</section>