Easily clear floats by adding .clearfix to the parent element. Can also be used as a mixin.
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-300 clearfix p-3 rounded"> <button class="btn btn-secondary float-left" type="button">Example Button floated left</button> <button class="btn btn-secondary float-right" type="button">Example Button floated right</button> </div>