Horizontal dividers are a perfectly acceptable way to separate content. You have four spacing options for it:

<ul class="Vlt-list Vlt-list--simple">
<li><code>hr--tall:</code> vertical margin of 4 units</li>
<li>Default: vertical margin of 3 units</li>
<li><code>hr--short:</code> vertical margin of 2 units</li>
<li><code>hr--shorter:</code> vertical margin of 1 unit</li>
</ul>

You can add any Volta background color or gradient.