Section Heading
To avoid unnecessary wrapper elements you can apply the width modifiers to the section its self.
HTML
<div class="sectionHeading width--wide">
<h3 class="fs2">
This is a section heading
</h3>
<p>
This is an optional introductory paragraph Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin cursus libero in felis tincidunt
malesuada quis vitae augue. Donec ac mollis tortor. Quisque eleifend sollicitudin metus, vitae bibendum turpis.
</p><a class="button button--more">View all</a>
</div>