A clearfix makes a parent element wrap around its floated children again, so borders, backgrounds and the content that follows stay where you expect. The examples outline every parent with a dashed border and every floated box with a solid one, so you can see the helper at work.
1Two floated buttons
The parent wraps a float-start and a float-end button, so its dashed border surrounds both.
Dashed border: the .clearfix parent. It keeps its height even though both children float.
<div class="hp-cf clearfix">
<button type="button" class="btn btn-outline-secondary float-start">Back</button>
<button type="button" class="btn btn-primary float-end">Continue</button>
</div>
<p class="small text-body-secondary mt-2 mb-0">Dashed border: the .clearfix parent. It keeps its height even though both children float.</p>
2With and without clearfix
Side by side comparison: without the helper the parent collapses to its padding and the float hangs out.
A title floated left and a status badge floated right inside a card header.
Animal rescueActive
We keep things simple, so you can focus on what matters to you.
<div class="card">
<div class="card-header hp-cf clearfix">
<span class="hp-fl float-start px-2 fw-semibold">Animal rescue</span> <span class="badge text-bg-success float-end mt-1">Active</span>
</div>
<div class="card-body small">
We keep things simple, so you can focus on what matters to you.
</div>
</div>
5Toolbar
A floated button group and a floated search field share one toolbar row.
A quote floated to the end of the paragraph; the article wrapper is cleared so the next section starts below.
"Help us build a kinder world"
Start in minutes and get help from a real person whenever you need it. Clear prices, honest advice and no surprises along the way. Every donation is tax-deductible, and receipts arrive by email instantly. We measure success by how many donors come back and tell their friends.
Our annual report is independently audited and published in full.
Next section starts on a clean line
<article class="hp-cf clearfix">
<blockquote class="hp-fl float-sm-end ms-sm-3 mb-2 p-3 fs-6 fst-italic">"Help us build a kinder world"</blockquote>
<p class="mb-2">Start in minutes and get help from a real person whenever you need it. Clear prices, honest advice and no surprises along the way. Every donation is tax-deductible, and receipts arrive by email instantly. We measure success by how many donors come back and tell their friends.</p>
<p class="mb-0">Our annual report is independently audited and published in full.</p>
</article>
<h3 class="h6 mt-3 mb-0">Next section starts on a clean line</h3>
8Comment with avatar
A comment row with a floated avatar and a floated time stamp.
17 hours ago
Freya Carter
Every detail is handled by people who care about getting it right.
<div class="hp-cf clearfix">
<img src="../assets/img/avatar-6.svg" alt="Freya Carter" width="40" height="40" class="rounded-circle float-start me-2"> <small class="hp-fl float-end px-2 text-body-secondary">17 hours ago</small> <strong class="d-block">Freya Carter</strong>
<p class="small mb-0">Every detail is handled by people who care about getting it right.</p>
</div>
9Responsive floats
float-md-start and float-md-end only float from the md breakpoint; below it the boxes stack.
A product image floated to the end of a card body with the description flowing around it.
Meal pack
Thousands of donors already trust us, and we work hard to keep it that way.
<div class="card">
<div class="card-body hp-cf clearfix">
<img src="../assets/img/product-3.svg" alt="Meal pack" width="110" height="110" class="hp-fl float-end ms-3 rounded">
<h3 class="h6">Meal pack</h3>
<p class="small mb-0">Thousands of donors already trust us, and we work hard to keep it that way.</p>
</div>
</div>
20Sidebar and content
A classic two-column float layout: a floated nav box and a content box; clearfix closes the row.
Stories from the families we support
Our team has done this many times, so you never have to guess. Ninety cents of every dollar goes directly to the projects you support. Clean water wells are built with and maintained by local communities. A school kit costs less than a cinema ticket and lasts a whole year.
<div class="hp-cf clearfix">
<nav class="hp-fl float-sm-start me-sm-3 mb-2 p-2" aria-label="Section">
<ul class="nav flex-column small">
<li class="nav-item"><a class="nav-link active py-1" aria-current="page" href="#">Overview</a></li>
<li class="nav-item"><a class="nav-link py-1" href="#">Members</a></li>
<li class="nav-item"><a class="nav-link py-1" href="#">Billing</a></li>
</ul>
</nav>
<div class="overflow-hidden">
<h3 class="h6">Stories from the families we support</h3>
<p class="small mb-0">Our team has done this many times, so you never have to guess. Ninety cents of every dollar goes directly to the projects you support. Clean water wells are built with and maintained by local communities. A school kit costs less than a cinema ticket and lasts a whole year.</p>
</div>
</div>