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.
Car rentalIn review
Every hotel on our list is visited and reviewed by our own travel team.
<div class="card">
<div class="card-header hp-cf clearfix">
<span class="hp-fl float-start px-2 fw-semibold">Car rental</span> <span class="badge text-bg-success float-end mt-1">In review</span>
</div>
<div class="card-body small">
Every hotel on our list is visited and reviewed by our own travel team.
</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.
"Hand-picked stays in beautiful places"
Clear prices, honest advice and no surprises along the way. Friendly people answer your questions quickly, by phone, chat or email. Flexible dates help you find quieter weeks and better prices.
Thousands of travellers already trust us, and we work hard to keep it that way.
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">"Hand-picked stays in beautiful places"</blockquote>
<p class="mb-2">Clear prices, honest advice and no surprises along the way. Friendly people answer your questions quickly, by phone, chat or email. Flexible dates help you find quieter weeks and better prices.</p>
<p class="mb-0">Thousands of travellers already trust us, and we work hard to keep it that way.</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.
3 min ago
Leo Morgan
We measure success by how many travellers come back and tell their friends.
<div class="hp-cf clearfix">
<img src="../assets/img/avatar-11.svg" alt="Leo Morgan" width="40" height="40" class="rounded-circle float-start me-2"> <small class="hp-fl float-end px-2 text-body-secondary">3 min ago</small> <strong class="d-block">Leo Morgan</strong>
<p class="small mb-0">We measure success by how many travellers come back and tell their friends.</p>
</div>
9Responsive floats
float-md-start and float-md-end only float from the md breakpoint; below it the boxes stack.
An icon floated left, a time stamp floated right and the message in between.
3 days ago
We keep things simple, so you can focus on what matters to you.
<div class="hp-cf clearfix bg-body">
<span class="hp-fl float-start me-2 px-2 py-1 text-primary"><i class="bi bi-bell" aria-hidden="true"></i></span> <small class="float-end text-body-secondary">3 days ago</small>
<p class="small mb-0">We keep things simple, so you can focus on what matters to you.</p>
</div>
16Pricing card label
A floated badge in the top corner of a pricing card body.
A product image floated to the end of a card body with the description flowing around it.
Mountain lodge
From city breaks to safaris, we plan trips around how you like to travel.
<div class="card">
<div class="card-body hp-cf clearfix">
<img src="../assets/img/product-3.svg" alt="Mountain lodge" width="110" height="110" class="hp-fl float-end ms-3 rounded">
<h3 class="h6">Mountain lodge</h3>
<p class="small mb-0">From city breaks to safaris, we plan trips around how you like to travel.</p>
</div>
</div>
20Sidebar and content
A classic two-column float layout: a floated nav box and a content box; clearfix closes the row.
A beginner's guide to getting started
Start in minutes and get help from a real person whenever you need it. Every trip supports local businesses and responsible tourism. Travel insurance and car rental can be added in a single click.
<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">A beginner's guide to getting started</h3>
<p class="small mb-0">Start in minutes and get help from a real person whenever you need it. Every trip supports local businesses and responsible tourism. Travel insurance and car rental can be added in a single click.</p>
</div>
</div>