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

We listen first, then build a plan around what you actually need. Thousands of members already trust us, and we work hard to keep it that way. Accounting sync keeps your books up to date without manual exports. Every payment appears instantly, with receipts matched automatically.

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">
      We listen first, then build a plan around what you actually need. Thousands of members already trust us, and we work hard to keep it that way. Accounting sync keeps your books up to date without manual exports. Every payment appears instantly, with receipts matched automatically.
    </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">
      We listen first, then build a plan around what you actually need. Thousands of members already trust us, and we work hard to keep it that way. Accounting sync keeps your books up to date without manual exports. Every payment appears instantly, with receipts matched automatically.
    </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">
      We listen first, then build a plan around what you actually need. Thousands of members already trust us, and we work hard to keep it that way. Accounting sync keeps your books up to date without manual exports. Every payment appears instantly, with receipts matched automatically.
    </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">
      We listen first, then build a plan around what you actually need. Thousands of members already trust us, and we work hard to keep it that way. Accounting sync keeps your books up to date without manual exports. Every payment appears instantly, with receipts matched automatically.
    </div>
  </div>
</div>

2Horizontal scroll only

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

Expense tracking

Business accounts

Expense tracking

Multi-currency wallets

<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">
      Expense tracking
    </div>
  </div>
  <div class="border rounded-3 p-3 flex-shrink-0" style="width:160px">
    <div class="fw-semibold small">
      Business accounts
    </div>
  </div>
  <div class="border rounded-3 p-3 flex-shrink-0" style="width:160px">
    <div class="fw-semibold small">
      Expense tracking
    </div>
  </div>
  <div class="border rounded-3 p-3 flex-shrink-0" style="width:160px">
    <div class="fw-semibold small">
      Multi-currency wallets
    </div>
  </div>
  <div class="border rounded-3 p-3 flex-shrink-0" style="width:160px">
    <div class="fw-semibold small">
      Multi-currency wallets
    </div>
  </div>
</div>

3Vertical scroll only

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

Freya Rossi
Owen Lindqvist
Tariq Mensah
Diego Kim
Kenji Nguyen
Luna Hughes

<ul class="list-unstyled border rounded-3 overflow-y-auto mb-0" style="max-height:150px">
  <li class="px-3 py-2 border-bottom">Freya Rossi</li>
  <li class="px-3 py-2 border-bottom">Owen Lindqvist</li>
  <li class="px-3 py-2 border-bottom">Tariq Mensah</li>
  <li class="px-3 py-2 border-bottom">Diego Kim</li>
  <li class="px-3 py-2 border-bottom">Kenji Nguyen</li>
  <li class="px-3 py-2">Luna Hughes</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="../assets/img/photo-1.svg" 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-1624555130581-1d9cca783bc0?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
#ORD-2126	Mia Duarte	Copenhagen	Dec 31, 2025	Overdue	$151.76
#ORD-4192	Mateo Fischer	Melbourne	May 23, 2026	Draft	$812.01

<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>#ORD-2126</td>
        <td>Mia Duarte</td>
        <td>Copenhagen</td>
        <td>Dec 31, 2025</td>
        <td>Overdue</td>
        <td>$151.76</td>
      </tr>
      <tr>
        <td>#ORD-4192</td>
        <td>Mateo Fischer</td>
        <td>Melbourne</td>
        <td>May 23, 2026</td>
        <td>Draft</td>
        <td>$812.01</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/rally-kit --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/rally-kit --base ./ --sourcemap false --emptyOutDir</code></pre>

7Chat window

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

Cash flow forecasts show where you will be next month, not just today.

No monthly fees on the basic plan and no hidden charges on transfers.

Real people answer your questions around the clock, every day of the year.

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

<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">
      Cash flow forecasts show where you will be next month, not just today.
    </div>
    <div class="align-self-end text-bg-primary rounded-3 px-2 py-1 small">
      No monthly fees on the basic plan and no hidden charges on transfers.
    </div>
    <div class="align-self-start bg-body-tertiary rounded-3 px-2 py-1 small">
      Real people answer your questions around the clock, every day of the year.
    </div>
    <div class="align-self-end text-bg-primary rounded-3 px-2 py-1 small">
      Start in minutes and get help from a real person whenever you need it.
    </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">Invoices</a> <a href="#" class="btn btn-sm btn-light border rounded-pill text-nowrap">community</a> <a href="#" class="btn btn-sm btn-light border rounded-pill text-nowrap">Invoices</a> <a href="#" class="btn btn-sm btn-light border rounded-pill text-nowrap">case study</a> <a href="#" class="btn btn-sm btn-light border rounded-pill text-nowrap">plan</a> <a href="#" class="btn btn-sm btn-light border rounded-pill text-nowrap">reliable</a> 
</nav>

9Terms box

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

Terms of use

Clear prices, honest advice and no surprises along the way. Set approval rules for large payments and see who spent what, and why. Payroll runs on time, with tax and pension payments handled for you.

Your money is protected by bank-grade security and regulated partners. Send and receive money in more than 30 currencies at fair exchange rates. Issue virtual and physical cards to your team with limits you control.

Open a business account online in about ten minutes, with no branch visit. We keep things simple, so you can focus on what matters to you. We measure success by how many members come back and tell their friends.

<div class="border rounded-3 p-3 overflow-auto small bg-body-tertiary" style="height:130px">
  <h3 class="h6">Terms of use</h3>
  <p>Clear prices, honest advice and no surprises along the way. Set approval rules for large payments and see who spent what, and why. Payroll runs on time, with tax and pension payments handled for you.</p>
  <p>Your money is protected by bank-grade security and regulated partners. Send and receive money in more than 30 currencies at fair exchange rates. Issue virtual and physical cards to your team with limits you control.</p>
  <p class="mb-0">Open a business account online in about ten minutes, with no branch visit. We keep things simple, so you can focus on what matters to you. We measure success by how many members come back and tell their friends.</p>
</div>

10Visible overflow for a badge

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

overflow-hidden6

overflow-visible5

<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">6</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">5</span>
  </div>
</div>

11Hidden overflow for a cropped title

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

Clear numbers for confident decisions - Friendly people answer your questions quickly, by phone, chat or email.

May 6, 2026

<div class="border rounded-3 p-3" style="max-width:20rem">
  <div class="overflow-hidden fw-semibold lh-sm" style="height:2.5em">
    Clear numbers for confident decisions - Friendly people answer your questions quickly, by phone, chat or email.
  </div>
  <div class="small text-body-secondary mt-1">
    May 6, 2026
  </div>
</div>

12Sidebar that scrolls separately

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

Every detail is handled by people who care about getting it right. We measure success by how many members come back and tell their friends.

<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">
    Every detail is handled by people who care about getting it right. We measure success by how many members come back and tell their friends.
  </div>
</div>

13Image pan area

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

<div class="overflow-auto border rounded-3" style="height:160px;max-width:26rem">
  <img src="https://images.unsplash.com/photo-1714974528757-f63c72154a1b?auto=format&fit=crop&w=1600&h=700&q=70" alt="Budgeting basics for small teams" 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

Invoicing

Business accounts

Multi-currency wallets

Doing

Corporate cards

Done

Business accounts

<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">
      Invoicing
    </div>
    <div class="bg-body border rounded-2 p-2 small mb-2">
      Business accounts
    </div>
    <div class="bg-body border rounded-2 p-2 small">
      Multi-currency wallets
    </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">
      Corporate cards
    </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">
      Business accounts
    </div>
  </div>
</div>

15Overflow-x hidden

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

Set approval rules for large payments and see who spent what, and why.

Panel partly off the edge

<div class="position-relative overflow-x-hidden border rounded-3 p-3" style="height:110px">
  <div class="small">
    Set approval rules for large payments and see who spent what, and why.
  </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.

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

<div class="overflow-y-scroll border rounded-3 p-2 small" style="height:90px">
  Clear prices, honest advice and no surprises along the way.
</div>

17Notification panel

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

Notifications

Accounting sync keeps your books up to date without manual exports.

Payroll runs on time, with tax and pension payments handled for you.

Thousands of members already trust us, and we work hard to keep it that way.

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">
      Accounting sync keeps your books up to date without manual exports.
    </div>
    <div class="px-3 py-2 border-bottom small">
      Payroll runs on time, with tax and pension payments handled for you.
    </div>
    <div class="px-3 py-2 border-bottom small">
      Thousands of members already trust us, and we work hard to keep it that way.
    </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.

Take control of your cash flow

Send and receive money in more than 30 currencies at fair exchange rates.

<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">Take control of your cash flow</h3>
  <p class="small mb-0 position-relative">Send and receive money in more than 30 currencies at fair exchange rates.</p>
</div>

19Long word handling

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

downloads/rally-kit/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/rally-kit/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/rally-kit/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	49	463 GB	Email and chat	Unlimited	$33.13

<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>49</td>
        <td>463 GB</td>
        <td>Email and chat</td>
        <td>Unlimited</td>
        <td>$33.13</td>
      </tr>
    </tbody>
  </table>
</div>