Clearfix

Easily clear floats by adding .clearfix to the parent element.

<div class="clearfix">...</div>

It adds an empty block after the content that clears both sides:

.clearfix::after {
  content: "";
  display: block;
  clear: both;
}

The following example shows how the clearfix can be used. Without the clearfix the wrapping div would not span around the buttons which would cause a broken layout.

<div class="bg-info clearfix">
  <button type="button" class="btn btn-secondary float-start">Example Button floated left</button>
  <button type="button" class="btn btn-secondary float-end">Example Button floated right</button>
</div>