Easily clear floats by adding .clearfix to the parent element.
<div class="clearfix">...</div>The following example shows how the clearfix can be used. Without the clearfix, the wrapping div would not span the buttons, which would cause a broken layout.
<div class="bg-light clearfix">
<button class="btn btn-secondary float-left">Example button floated left</button>
<button class="btn btn-secondary float-right">Example button floated right</button>
</div>