bootstrap/site/content/docs/4.6/utilities/clearfix.md

layout	title	description	group
docs	Clearfix	Quickly and easily clear floated content within a container by adding a clearfix utility.	utilities

Easily clear floats by adding .clearfix to the parent element. Can also be used as a mixin.

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

// Mixin itself
@mixin clearfix() {
  &::after {
    display: block;
    content: "";
    clear: both;
  }
}

// Usage as a mixin
.element {
  @include clearfix;
}

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.

{{< example >}}

Example Button floated left Example Button floated right

{{< /example >}}