6.1 utility.clearfix Clearfix
Allows the bottom of an element to extend to the bottom of all floated child elements. See http://nicolasgallagher.com/micro-clearfix-hack/
Example
A floated item.
Markup: utility/clearfix/clearfix.twig
<div class="clearfix">
<div style="float: left; height: 50px; width: 50%;">A floated item.</div>
</div>
Source:
utility/clearfix/_clearfix.scss, line 1