Margin
Add margin above or below a container. By default margin is added to the bottom.
.l-margin--top
By default there's no margin added to the top. Add top margin using this modifier.
<section class="l-margin [modifier class]" style="background-color:#CCC">
Margin content
</section>
<section class="l-margin [modifier class]" style="background-color:#CCC">
Margin content
</section>