Overflow

Overflow utilities control what happens when content is bigger than its box: overflow-auto scrolls when needed, overflow-hidden clips, overflow-visible lets content spill and overflow-scroll always shows scrollbars. overflow-x-* and overflow-y-* handle each axis separately, ideal for wide tables and side-scrolling rows.

1The four overflow values

overflow-auto, overflow-hidden, overflow-visible and overflow-scroll on boxes of fixed height.

overflow-auto

Every detail is handled by people who care about getting it right. Honest advice comes first, even when it means waiting for the right home. Mortgage advisors help you understand what you can afford before you start. We listen first, then build a plan around what you actually need.

overflow-hidden

overflow-visible

overflow-scroll

<div class="row g-3 small">
  <div class="col-6 col-md-3">
    <code>overflow-auto</code>
    <div class="overflow-auto border rounded-3 p-2 bg-body-tertiary" style="height:100px">
      Every detail is handled by people who care about getting it right. Honest advice comes first, even when it means waiting for the right home. Mortgage advisors help you understand what you can afford before you start. We listen first, then build a plan around what you actually need.
    </div>
  </div>
  <div class="col-6 col-md-3">
    <code>overflow-hidden</code>
    <div class="overflow-hidden border rounded-3 p-2 bg-body-tertiary" style="height:100px">
      Every detail is handled by people who care about getting it right. Honest advice comes first, even when it means waiting for the right home. Mortgage advisors help you understand what you can afford before you start. We listen first, then build a plan around what you actually need.
    </div>
  </div>
  <div class="col-6 col-md-3">
    <code>overflow-visible</code>
    <div class="overflow-visible border rounded-3 p-2 bg-body-tertiary mb-5" style="height:100px">
      Every detail is handled by people who care about getting it right. Honest advice comes first, even when it means waiting for the right home. Mortgage advisors help you understand what you can afford before you start. We listen first, then build a plan around what you actually need.
    </div>
  </div>
  <div class="col-6 col-md-3">
    <code>overflow-scroll</code>
    <div class="overflow-scroll border rounded-3 p-2 bg-body-tertiary" style="height:100px">
      Every detail is handled by people who care about getting it right. Honest advice comes first, even when it means waiting for the right home. Mortgage advisors help you understand what you can afford before you start. We listen first, then build a plan around what you actually need.
    </div>
  </div>
</div>

2Horizontal scroll only

overflow-x-auto with flex-nowrap scrolls a row of cards sideways.

Legal support

Rental management

Virtual tours

Mortgage advice

<div class="d-flex flex-nowrap gap-2 overflow-x-auto pb-2">
  <div class="border rounded-3 p-3 flex-shrink-0" style="width:160px">
    <div class="fw-semibold small">
      Legal support
    </div>
  </div>
  <div class="border rounded-3 p-3 flex-shrink-0" style="width:160px">
    <div class="fw-semibold small">
      Legal support
    </div>
  </div>
  <div class="border rounded-3 p-3 flex-shrink-0" style="width:160px">
    <div class="fw-semibold small">
      Rental management
    </div>
  </div>
  <div class="border rounded-3 p-3 flex-shrink-0" style="width:160px">
    <div class="fw-semibold small">
      Virtual tours
    </div>
  </div>
  <div class="border rounded-3 p-3 flex-shrink-0" style="width:160px">
    <div class="fw-semibold small">
      Mortgage advice
    </div>
  </div>
</div>

3Vertical scroll only

overflow-y-auto and a max-height make a scrolling list.

Ella Brennan
Luna Silva
Aria Moreau
Ethan Haddad
Ruby Sato
Ravi Ibrahim

<ul class="list-unstyled border rounded-3 overflow-y-auto mb-0" style="max-height:150px">
  <li class="px-3 py-2 border-bottom">Ella Brennan</li>
  <li class="px-3 py-2 border-bottom">Luna Silva</li>
  <li class="px-3 py-2 border-bottom">Aria Moreau</li>
  <li class="px-3 py-2 border-bottom">Ethan Haddad</li>
  <li class="px-3 py-2 border-bottom">Ruby Sato</li>
  <li class="px-3 py-2">Ravi Ibrahim</li>
</ul>

4Hidden to clip rounded corners

overflow-hidden on a rounded card clips the image corners.

without

overflow-hidden

<div class="row g-3">
  <div class="col-6">
    <div class="border rounded-4">
      <img src="https://images.unsplash.com/photo-1580587771525-78b9dba3b914?auto=format&fit=crop&w=1200&h=800&q=70" alt="Not clipped" class="w-100 d-block">
      <div class="p-2 small">
        without
      </div>
    </div>
  </div>
  <div class="col-6">
    <div class="border rounded-4 overflow-hidden">
      <img src="https://images.unsplash.com/photo-1600596542815-ffad4c1539a9?auto=format&fit=crop&w=1200&h=800&q=70" alt="Clipped" class="w-100 d-block">
      <div class="p-2 small">
        overflow-hidden
      </div>
    </div>
  </div>
</div>

5Wide table

A wide table inside overflow-x-auto scrolls instead of breaking the page.

Order	Customer	City	Date	Status	Total
#INV-2022	Noah Kim	Melbourne	Aug 10, 2026	In review	$580.31
#TX-7447	Zoe Tanaka	Austin	Sep 29, 2026	Draft	$434.55

<div class="overflow-x-auto border rounded-3">
  <table class="table table-sm mb-0 text-nowrap">
    <thead>
      <tr>
        <th scope="col">Order</th>
        <th scope="col">Customer</th>
        <th scope="col">City</th>
        <th scope="col">Date</th>
        <th scope="col">Status</th>
        <th scope="col">Total</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td>#INV-2022</td>
        <td>Noah Kim</td>
        <td>Melbourne</td>
        <td>Aug 10, 2026</td>
        <td>In review</td>
        <td>$580.31</td>
      </tr>
      <tr>
        <td>#TX-7447</td>
        <td>Zoe Tanaka</td>
        <td>Austin</td>
        <td>Sep 29, 2026</td>
        <td>Draft</td>
        <td>$434.55</td>
      </tr>
    </tbody>
  </table>
</div>

6Code block that scrolls

Long lines in a pre with overflow-x-auto stay on one line.

npm run build -- --mode production --out-dir dist/kora --base ./ --sourcemap false --emptyOutDir

<pre class="overflow-x-auto bg-body-tertiary border rounded-3 p-3 small mb-0"><code>npm run build -- --mode production --out-dir dist/kora --base ./ --sourcemap false --emptyOutDir</code></pre>

7Chat window

A fixed height message area with overflow-y-auto above a fixed input.

Our rental team manages repairs, payments and tenants for landlords.

We handle the paperwork, so you can focus on planning the move.

Start in minutes and get help from a real person whenever you need it.

Sellers get professional photos, floor plans and a marketing plan included.

<div class="border rounded-4 d-flex flex-column" style="height:220px;max-width:22rem">
  <div class="overflow-y-auto p-3 d-flex flex-column gap-2 flex-grow-1">
    <div class="align-self-start bg-body-tertiary rounded-3 px-2 py-1 small">
      Our rental team manages repairs, payments and tenants for landlords.
    </div>
    <div class="align-self-end text-bg-primary rounded-3 px-2 py-1 small">
      We handle the paperwork, so you can focus on planning the move.
    </div>
    <div class="align-self-start bg-body-tertiary rounded-3 px-2 py-1 small">
      Start in minutes and get help from a real person whenever you need it.
    </div>
    <div class="align-self-end text-bg-primary rounded-3 px-2 py-1 small">
      Sellers get professional photos, floor plans and a marketing plan included.
    </div>
  </div>
  <div class="border-top p-2">
    <label class="visually-hidden" for="ut-msg-1253">Message</label>
    <input id="ut-msg-1253" type="text" class="form-control form-control-sm" placeholder="Type a message">
  </div>
</div>

8Scrollable tab strip

Pills in a flex-nowrap row with overflow-x-auto for many categories.

<nav class="d-flex flex-nowrap gap-2 overflow-x-auto pb-1" aria-label="Categories">
  <a href="#" class="btn btn-sm btn-primary rounded-pill text-nowrap">All</a> <a href="#" class="btn btn-sm btn-light border rounded-pill text-nowrap">Apartments</a> <a href="#" class="btn btn-sm btn-light border rounded-pill text-nowrap">tutorial</a> <a href="#" class="btn btn-sm btn-light border rounded-pill text-nowrap">Apartments</a> <a href="#" class="btn btn-sm btn-light border rounded-pill text-nowrap">update</a> <a href="#" class="btn btn-sm btn-light border rounded-pill text-nowrap">goal</a> <a href="#" class="btn btn-sm btn-light border rounded-pill text-nowrap">modern</a> 
</nav>

9Terms box

A long text inside a bordered box with overflow-auto, like a licence agreement.

Terms of use

Our team has done this many times, so you never have to guess. We keep things simple, so you can focus on what matters to you. Every listing is checked by our team, so the photos match what you see in person. Most of our homes sell within six weeks, often above the asking price.

Neighbourhood guides cover transport, schools and things to do. Thousands of buyers already trust us, and we work hard to keep it that way. Price alerts tell you the moment a home that fits your search comes on the market. We measure success by how many buyers come back and tell their friends.

Our local agents know every street, school and coffee shop in the area. Get a free, no-obligation valuation of your home within 48 hours. Clear prices, honest advice and no surprises along the way. Thousands of buyers already trust us, and we work hard to keep it that way.

<div class="border rounded-3 p-3 overflow-auto small bg-body-tertiary" style="height:130px">
  <h3 class="h6">Terms of use</h3>
  <p>Our team has done this many times, so you never have to guess. We keep things simple, so you can focus on what matters to you. Every listing is checked by our team, so the photos match what you see in person. Most of our homes sell within six weeks, often above the asking price.</p>
  <p>Neighbourhood guides cover transport, schools and things to do. Thousands of buyers already trust us, and we work hard to keep it that way. Price alerts tell you the moment a home that fits your search comes on the market. We measure success by how many buyers come back and tell their friends.</p>
  <p class="mb-0">Our local agents know every street, school and coffee shop in the area. Get a free, no-obligation valuation of your home within 48 hours. Clear prices, honest advice and no surprises along the way. Thousands of buyers already trust us, and we work hard to keep it that way.</p>
</div>

10Visible overflow for a badge

overflow-visible lets a badge stick out of a box that would otherwise clip it.

overflow-hidden2

overflow-visible1

<div class="d-flex gap-4 pt-2">
  <div class="position-relative overflow-hidden border rounded-3 p-3 small">
    overflow-hidden<span class="position-absolute top-0 start-100 translate-middle badge rounded-pill text-bg-danger">2</span>
  </div>
  <div class="position-relative overflow-visible border rounded-3 p-3 small">
    overflow-visible<span class="position-absolute top-0 start-100 translate-middle badge rounded-pill text-bg-danger">1</span>
  </div>
</div>

11Hidden overflow for a cropped title

overflow-hidden with a fixed height clips long text to two lines worth of space.

Sell faster with an expert at your side - We listen first, then build a plan around what you actually need.

Sep 7, 2026

<div class="border rounded-3 p-3" style="max-width:20rem">
  <div class="overflow-hidden fw-semibold lh-sm" style="height:2.5em">
    Sell faster with an expert at your side - We listen first, then build a plan around what you actually need.
  </div>
  <div class="small text-body-secondary mt-1">
    Sep 7, 2026
  </div>
</div>

12Sidebar that scrolls separately

The nav column scrolls with overflow-y-auto while the content stays put.

We measure success by how many buyers come back and tell their friends. Book viewings online and take a 3D tour before you leave the house.

<div class="d-flex border rounded-3" style="height:180px">
  <nav class="overflow-y-auto border-end p-2 small flex-shrink-0" style="width:130px" aria-label="Chapters">
    <a href="#" class="d-block py-1">Intro</a><a href="#" class="d-block py-1">Setup</a><a href="#" class="d-block py-1">Layout</a> <a href="#" class="d-block py-1">Colours</a><a href="#" class="d-block py-1">Forms</a><a href="#" class="d-block py-1">Tables</a> <a href="#" class="d-block py-1">Charts</a><a href="#" class="d-block py-1">Deploy</a> 
  </nav>
  <div class="p-3 small">
    We measure success by how many buyers come back and tell their friends. Book viewings online and take a 3D tour before you leave the house.
  </div>
</div>

13Image pan area

A large image in an overflow-auto box can be scrolled in both directions.

The best neighbourhoods for families this year

<div class="overflow-auto border rounded-3" style="height:160px;max-width:26rem">
  <img src="https://images.unsplash.com/photo-1600596542815-ffad4c1539a9?auto=format&fit=crop&w=1600&h=700&q=70" alt="The best neighbourhoods for families this year" width="900" height="394" class="d-block"> 
</div>

14Kanban columns

Columns side by side in overflow-x-auto, each column scrolls with overflow-y-auto.

To do

Mortgage advice

Legal support

Home valuation

Doing

Rental management

Done

Virtual tours

<div class="d-flex gap-2 overflow-x-auto pb-1">
  <div class="bg-body-tertiary rounded-3 p-2 flex-shrink-0 overflow-y-auto" style="width:170px;max-height:180px">
    <div class="small fw-semibold mb-2">
      To do
    </div>
    <div class="bg-body border rounded-2 p-2 small mb-2">
      Mortgage advice
    </div>
    <div class="bg-body border rounded-2 p-2 small mb-2">
      Legal support
    </div>
    <div class="bg-body border rounded-2 p-2 small">
      Home valuation
    </div>
  </div>
  <div class="bg-body-tertiary rounded-3 p-2 flex-shrink-0 overflow-y-auto" style="width:170px;max-height:180px">
    <div class="small fw-semibold mb-2">
      Doing
    </div>
    <div class="bg-body border rounded-2 p-2 small">
      Rental management
    </div>
  </div>
  <div class="bg-body-tertiary rounded-3 p-2 flex-shrink-0 overflow-y-auto" style="width:170px;max-height:180px">
    <div class="small fw-semibold mb-2">
      Done
    </div>
    <div class="bg-body border rounded-2 p-2 small">
      Virtual tours
    </div>
  </div>
</div>

15Overflow-x hidden

overflow-x-hidden hides content that slides in from the side, like an off-screen panel.

Friendly people answer your questions quickly, by phone, chat or email.

Panel partly off the edge

<div class="position-relative overflow-x-hidden border rounded-3 p-3" style="height:110px">
  <div class="small">
    Friendly people answer your questions quickly, by phone, chat or email.
  </div>
  <div class="position-absolute top-0 bg-primary-subtle h-100 p-2 small" style="left:90%;width:200px">
    Panel partly off the edge
  </div>
</div>

16Overflow-y scroll always

overflow-y-scroll always shows the vertical scrollbar, so the width never jumps.

Get a free, no-obligation valuation of your home within 48 hours.

<div class="overflow-y-scroll border rounded-3 p-2 small" style="height:90px">
  Get a free, no-obligation valuation of your home within 48 hours.
</div>

17Notification panel

A dropdown-like panel with header, scrolling body and footer.

Notifications

Every listing is checked by our team, so the photos match what you see in person.

Clear prices, honest advice and no surprises along the way.

Every detail is handled by people who care about getting it right.

Our team has done this many times, so you never have to guess.

View all

<div class="border rounded-3 shadow-sm d-flex flex-column" style="max-width:20rem;height:220px">
  <div class="px-3 py-2 border-bottom fw-semibold small">
    Notifications
  </div>
  <div class="overflow-y-auto flex-grow-1">
    <div class="px-3 py-2 border-bottom small">
      Every listing is checked by our team, so the photos match what you see in person.
    </div>
    <div class="px-3 py-2 border-bottom small">
      Clear prices, honest advice and no surprises along the way.
    </div>
    <div class="px-3 py-2 border-bottom small">
      Every detail is handled by people who care about getting it right.
    </div>
    <div class="px-3 py-2 small">
      Our team has done this many times, so you never have to guess.
    </div>
  </div>
  <a href="#" class="px-3 py-2 border-top small text-center">View all</a> 
</div>

18Clip a decorative shape

A big circle partly outside its panel is cut off by overflow-hidden.

Smart property search, real advice

Neighbourhood guides cover transport, schools and things to do.

<div class="position-relative overflow-hidden text-bg-primary rounded-4 p-4">
  <div class="position-absolute bg-white bg-opacity-25 rounded-circle" style="width:180px;height:180px;right:-60px;top:-60px">
  </div>
  <h3 class="h5 position-relative">Smart property search, real advice</h3>
  <p class="small mb-0 position-relative">Neighbourhood guides cover transport, schools and things to do.</p>
</div>

19Long word handling

overflow-hidden plus text-truncate versus text-break for an unbreakable string.

downloads/kora/assets/very-long-file-name-without-any-spaces-at-all.zip

<div class="row g-2 small">
  <div class="col-sm-6">
    <div class="border rounded-3 p-2 text-truncate">
      downloads/kora/assets/very-long-file-name-without-any-spaces-at-all.zip
    </div>
  </div>
  <div class="col-sm-6">
    <div class="border rounded-3 p-2 text-break">
      downloads/kora/assets/very-long-file-name-without-any-spaces-at-all.zip
    </div>
  </div>
</div>

20Responsive table wrapper

table-responsive is the helper made of overflow-x-auto for tables.

Plan	Users	Storage	Support	API	Price
Pro	34	371 GB	Email and chat	Unlimited	$56.19

<div class="table-responsive border rounded-3">
  <table class="table table-sm mb-0 text-nowrap">
    <thead>
      <tr>
        <th scope="col">Plan</th>
        <th scope="col">Users</th>
        <th scope="col">Storage</th>
        <th scope="col">Support</th>
        <th scope="col">API</th>
        <th scope="col">Price</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td>Pro</td>
        <td>34</td>
        <td>371 GB</td>
        <td>Email and chat</td>
        <td>Unlimited</td>
        <td>$56.19</td>
      </tr>
    </tbody>
  </table>
</div>