Demo: CSS column-rule

<div class='container'>
  <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit.</p>
  <p>Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.</p>
</div>

.container {
  column-count: 2;
  column-rule: 2px dashed #333;
}

// No JavaScript required for this demo

Lorem ipsum dolor sit amet, consectetur adipiscing elit.

Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.