Stacks

Stacks are flexbox shortcuts: vstack lines items up vertically, hstack horizontally, and the gap utilities space them evenly. Push an item to the far side with ms-auto and separate groups with a vertical rule.

1Horizontal toolbar

hstack with gap-2 lines up buttons; ms-auto pushes the last group to the far end.

<div class="hstack gap-2 p-2 border rounded bg-body-tertiary">
  <button type="button" class="btn btn-sm btn-primary"><i class="bi bi-plus-lg" aria-hidden="true"></i> New</button>
  <button type="button" class="btn btn-sm btn-outline-secondary"><i class="bi bi-upload" aria-hidden="true"></i> Import</button>
  <div class="vr">
  </div>
  <button type="button" class="btn btn-sm btn-light" aria-label="Filter"><i class="bi bi-funnel" aria-hidden="true"></i></button>
  <button type="button" class="btn btn-sm btn-light ms-auto" aria-label="Settings"><i class="bi bi-gear" aria-hidden="true"></i></button>
</div>

2Vertical sign-in form

vstack with gap-3 spaces the fields of a compact form without margin utilities.

<form class="vstack gap-3" style="max-width:22rem">
  <div>
    <label class="form-label" for="hp-email-1236">Email</label>
    <input class="form-control" id="hp-email-1236" type="email" autocomplete="email">
  </div>
  <div>
    <label class="form-label" for="hp-pass-1237">Password</label>
    <input class="form-control" id="hp-pass-1237" type="password" autocomplete="current-password">
  </div>
  <button type="submit" class="btn btn-primary">Sign in</button>
  <a class="small text-center" href="#">Forgot your password?</a> 
</form>

3Profile row

An avatar, a name and role block and a follow button in one hstack.

Nadia Ibrahim Project Manager · Austin

<div class="hstack gap-3 p-3 border rounded">
  <img src="../assets/img/avatar-1.svg" alt="Nadia Ibrahim" width="48" height="48" class="rounded-circle"> 
  <div class="vstack gap-0">
    <strong>Nadia Ibrahim</strong> <small class="text-body-secondary">Project Manager &middot; Austin</small> 
  </div>
  <button type="button" class="btn btn-sm btn-outline-primary ms-auto">Follow</button>
</div>

4Notification list

A vstack of notification items, each an hstack of icon, message and time.

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

5 min ago

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

6 hours ago

Invoices go out with a payment link, so customers can pay you in one click.

just now

<div class="vstack gap-2">
  <div class="hstack gap-3 align-items-start p-2 border rounded">
    <span class="text-success fs-5"><i class="bi bi-bag-check" aria-hidden="true"></i></span>
    <div class="small">
      Real people answer your questions around the clock, every day of the year.
    </div>
    <small class="ms-auto text-nowrap text-body-secondary">5 min ago</small>
  </div>
  <div class="hstack gap-3 align-items-start p-2 border rounded">
    <span class="text-primary fs-5"><i class="bi bi-chat-left-text" aria-hidden="true"></i></span>
    <div class="small">
      Friendly people answer your questions quickly, by phone, chat or email.
    </div>
    <small class="ms-auto text-nowrap text-body-secondary">6 hours ago</small>
  </div>
  <div class="hstack gap-3 align-items-start p-2 border rounded">
    <span class="text-warning fs-5"><i class="bi bi-exclamation-triangle" aria-hidden="true"></i></span>
    <div class="small">
      Invoices go out with a payment link, so customers can pay you in one click.
    </div>
    <small class="ms-auto text-nowrap text-body-secondary">just now</small>
  </div>
</div>

5Centred button stack

vstack with col-md-5 mx-auto centres full-width buttons, as on a mobile landing screen.

Free for 30 days, no card needed

<div class="vstack gap-2 col-md-5 mx-auto">
  <button type="button" class="btn btn-primary">Create an account</button>
  <button type="button" class="btn btn-outline-secondary">I already have one</button>
  <small class="text-center text-body-secondary">Free for 30 days, no card needed</small> 
</div>

6Stacked feature cards

Cards stacked with vstack gap-3; inside each card an hstack pairs the icon with its text.

No hidden fees

We listen first, then build a plan around what you actually need.

Instant notifications

We keep things simple, so you can focus on what matters to you.

No hidden fees

We measure success by how many members come back and tell their friends.

<div class="vstack gap-3">
  <div class="card">
    <div class="card-body hstack gap-3">
      <span class="fs-3 text-primary"><i class="bi bi-people" aria-hidden="true"></i></span>
      <div>
        <h3 class="h6 mb-1">No hidden fees</h3>
        <p class="small mb-0">We listen first, then build a plan around what you actually need.</p>
      </div>
    </div>
  </div>
  <div class="card">
    <div class="card-body hstack gap-3">
      <span class="fs-3 text-primary"><i class="bi bi-people" aria-hidden="true"></i></span>
      <div>
        <h3 class="h6 mb-1">Instant notifications</h3>
        <p class="small mb-0">We keep things simple, so you can focus on what matters to you.</p>
      </div>
    </div>
  </div>
  <div class="card">
    <div class="card-body hstack gap-3">
      <span class="fs-3 text-primary"><i class="bi bi-lightning" aria-hidden="true"></i></span>
      <div>
        <h3 class="h6 mb-1">No hidden fees</h3>
        <p class="small mb-0">We measure success by how many members come back and tell their friends.</p>
      </div>
    </div>
  </div>
</div>

7Inline subscribe form

An hstack holding an input, a button and a divider link, a common newsletter pattern.

<form class="hstack gap-2">
  <label class="visually-hidden" for="hp-q-1238">Email address</label>
  <input class="form-control me-auto" id="hp-q-1238" type="email" placeholder="you@example.com"> 
  <button type="submit" class="btn btn-secondary">Subscribe</button>
  <div class="vr">
  </div>
  <button type="reset" class="btn btn-outline-danger">Reset</button>
</form>

8Pricing feature list

A vstack of check-mark rows inside a pricing card.

Business

$86.17 / month

No hidden fees

Bank-grade encryption

Spending limits

24/7 support

Instant notifications

<div class="card" style="max-width:22rem">
  <div class="card-body vstack gap-2">
    <h3 class="h5 mb-0">Business</h3>
    <p class="fs-3 fw-bold mb-1">$86.17<small class="fs-6 fw-normal text-body-secondary"> / month</small></p>
    <div class="hstack gap-2">
      <span class="text-success"><i class="bi bi-check-circle-fill" aria-hidden="true"></i></span>No hidden fees
    </div>
    <div class="hstack gap-2">
      <span class="text-success"><i class="bi bi-check-circle-fill" aria-hidden="true"></i></span>Bank-grade encryption
    </div>
    <div class="hstack gap-2">
      <span class="text-success"><i class="bi bi-check-circle-fill" aria-hidden="true"></i></span>Spending limits
    </div>
    <div class="hstack gap-2">
      <span class="text-success"><i class="bi bi-check-circle-fill" aria-hidden="true"></i></span>24/7 support
    </div>
    <div class="hstack gap-2">
      <span class="text-success"><i class="bi bi-check-circle-fill" aria-hidden="true"></i></span>Instant notifications
    </div>
    <button type="button" class="btn btn-primary mt-2">Choose plan</button>
  </div>
</div>

9Footer link row

hstack with flex-wrap and gap-3 for a row of footer links that wraps on narrow screens.

<footer class="hstack flex-wrap gap-3 small border-top pt-3">
  <span class="fw-semibold">Quillium</span> <a href="#">About</a><a href="#">Careers</a><a href="#">Press</a><a href="#">Help centre</a> <span class="ms-auto text-body-secondary">&copy; 2026</span> 
</footer>

10Chat bubbles

A vstack where align-self-start and align-self-end place incoming and outgoing messages.

Your money is protected by bank-grade security and regulated partners.

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

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

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

<div class="vstack gap-2">
  <div class="px-3 py-2 rounded-3 small bg-body-tertiary align-self-start" style="max-width:80%">
    Your money is protected by bank-grade security and regulated partners.
  </div>
  <div class="px-3 py-2 rounded-3 small text-bg-primary align-self-end" style="max-width:80%">
    Send and receive money in more than 30 currencies at fair exchange rates.
  </div>
  <div class="px-3 py-2 rounded-3 small bg-body-tertiary align-self-start" style="max-width:80%">
    Payroll runs on time, with tax and pension payments handled for you.
  </div>
  <div class="px-3 py-2 rounded-3 small text-bg-primary align-self-end" style="max-width:80%">
    No monthly fees on the basic plan and no hidden charges on transfers.
  </div>
</div>

11Wrapping tag row

hstack plus flex-wrap and gap-1 keeps tags tidy when they run onto a second line.

InvoicesCardsSavingsPaymentsPayroll

<div class="hstack flex-wrap gap-1">
  <span class="badge rounded-pill text-bg-light border">Invoices</span><span class="badge rounded-pill text-bg-light border">Cards</span><span class="badge rounded-pill text-bg-light border">Savings</span><span class="badge rounded-pill text-bg-light border">Payments</span><span class="badge rounded-pill text-bg-light border">Payroll</span>
</div>

12Settings rows

Each setting is an hstack with the label on the left and a switch pushed right with ms-auto.

Email notifications

Dark mode

<div class="vstack border rounded">
  <div class="hstack gap-3 p-3 border-bottom">
    <span class="fs-5 text-primary"><i class="bi bi-envelope" aria-hidden="true"></i></span> 
    <label class="form-check-label" for="hp-switch-1239">Email notifications</label>
    <div class="form-check form-switch ms-auto mb-0">
      <input class="form-check-input" type="checkbox" role="switch" id="hp-switch-1239" checked>
    </div>
  </div>
  <div class="hstack gap-3 p-3">
    <span class="fs-5 text-primary"><i class="bi bi-moon-stars" aria-hidden="true"></i></span> 
    <label class="form-check-label" for="hp-switch-1240">Dark mode</label>
    <div class="form-check form-switch ms-auto mb-0">
      <input class="form-check-input" type="checkbox" role="switch" id="hp-switch-1240">
    </div>
  </div>
</div>

13Stats with dividers

An hstack of figures separated by vertical rules.

5.4k

Clients

394

Projects

4.9

Rating

<div class="hstack gap-3 gap-md-4 p-3 border rounded justify-content-center text-center">
  <div>
    <div class="fs-4 fw-bold">
      5.4k
    </div>
    <small class="text-body-secondary">Clients</small>
  </div>
  <div class="vr">
  </div>
  <div>
    <div class="fs-4 fw-bold">
      394
    </div>
    <small class="text-body-secondary">Projects</small>
  </div>
  <div class="vr">
  </div>
  <div>
    <div class="fs-4 fw-bold">
      4.9
    </div>
    <small class="text-body-secondary">Rating</small>
  </div>
</div>

14Card meta line

An hstack in a card footer for author, date and a like counter.

The small habits that make a big difference

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

Theo Harlow·Jun 21, 2026 17

<div class="card" style="max-width:24rem">
  <div class="card-body">
    <h3 class="h6">The small habits that make a big difference</h3>
    <p class="small mb-0">Set approval rules for large payments and see who spent what, and why.</p>
  </div>
  <div class="card-footer hstack gap-2 small text-body-secondary">
    <img src="../assets/img/avatar-1.svg" alt="" width="24" height="24" class="rounded-circle"> <span>Theo Harlow</span><span>&middot;</span><span>Jun 21, 2026</span> <span class="ms-auto"><i class="bi bi-heart" aria-hidden="true"></i> 17</span> 
  </div>
</div>

15Order timeline

A vstack of steps, each an hstack of status badge and text.

Order placedAug 11, 2026

PackedJan 8, 2026

ShippedJul 15, 2026

DeliveredExpected Jan 10, 2027

<div class="vstack gap-3">
  <div class="hstack gap-3">
    <span class="badge rounded-pill text-bg-success"><i class="bi bi-check-lg" aria-hidden="true"></i></span>
    <div class="vstack">
      <strong class="small">Order placed</strong><small class="text-body-secondary">Aug 11, 2026</small>
    </div>
  </div>
  <div class="hstack gap-3">
    <span class="badge rounded-pill text-bg-success"><i class="bi bi-check-lg" aria-hidden="true"></i></span>
    <div class="vstack">
      <strong class="small">Packed</strong><small class="text-body-secondary">Jan 8, 2026</small>
    </div>
  </div>
  <div class="hstack gap-3">
    <span class="badge rounded-pill text-bg-success"><i class="bi bi-check-lg" aria-hidden="true"></i></span>
    <div class="vstack">
      <strong class="small">Shipped</strong><small class="text-body-secondary">Jul 15, 2026</small>
    </div>
  </div>
  <div class="hstack gap-3">
    <span class="badge rounded-pill text-bg-secondary"><i class="bi bi-clock" aria-hidden="true"></i></span>
    <div class="vstack">
      <strong class="small">Delivered</strong><small class="text-body-secondary">Expected Jan 10, 2027</small>
    </div>
  </div>
</div>

16Search bar

An hstack combining a search field, a filter select and a button.

<form class="hstack gap-2 flex-wrap flex-sm-nowrap" role="search">
  <label class="visually-hidden" for="hp-search-1241">Search</label>
  <input class="form-control" id="hp-search-1241" type="search" placeholder="Search payroll"> 
  <label class="visually-hidden" for="hp-search-1241-type">Type</label>
  <select class="form-select w-auto" id="hp-search-1241-type">
    <option>All</option>
    <option>Recent</option>
  </select>
  <button type="submit" class="btn btn-primary" aria-label="Search"><i class="bi bi-search" aria-hidden="true"></i></button>
</form>

17File rows

Attachment rows with icon, name and size, and a download button aligned right.

report-2025.pdf274 KB

proposal-2025.docx343 KB

budget-2026.xlsx560 KB

<div class="vstack gap-2">
  <div class="hstack gap-3 p-2 border rounded">
    <span class="fs-4 text-danger"><i class="bi bi-filetype-pdf" aria-hidden="true"></i></span>
    <div class="vstack">
      <span class="small fw-semibold">report-2025.pdf</span><small class="text-body-secondary">274 KB</small>
    </div>
    <button type="button" class="btn btn-sm btn-light ms-auto" aria-label="Download report"><i class="bi bi-download" aria-hidden="true"></i></button>
  </div>
  <div class="hstack gap-3 p-2 border rounded">
    <span class="fs-4 text-primary"><i class="bi bi-filetype-docx" aria-hidden="true"></i></span>
    <div class="vstack">
      <span class="small fw-semibold">proposal-2025.docx</span><small class="text-body-secondary">343 KB</small>
    </div>
    <button type="button" class="btn btn-sm btn-light ms-auto" aria-label="Download proposal"><i class="bi bi-download" aria-hidden="true"></i></button>
  </div>
  <div class="hstack gap-3 p-2 border rounded">
    <span class="fs-4 text-success"><i class="bi bi-filetype-xlsx" aria-hidden="true"></i></span>
    <div class="vstack">
      <span class="small fw-semibold">budget-2026.xlsx</span><small class="text-body-secondary">560 KB</small>
    </div>
    <button type="button" class="btn btn-sm btn-light ms-auto" aria-label="Download budget"><i class="bi bi-download" aria-hidden="true"></i></button>
  </div>
</div>

18Nested stacks

A vstack page section whose header is an hstack: stacks nest freely.

Payroll

26 View all

Your money is protected by bank-grade security and regulated partners.

<section class="vstack gap-3 p-3 border rounded">
  <div class="hstack gap-2">
    <h3 class="h5 mb-0">Payroll</h3>
    <span class="badge text-bg-primary">26</span> <a class="ms-auto small" href="#">View all</a> 
  </div>
  <p class="mb-0 small">Your money is protected by bank-grade security and regulated partners.</p>
  <div class="hstack gap-2">
    <button type="button" class="btn btn-sm btn-primary">Open</button>
    <button type="button" class="btn btn-sm btn-light">Share</button>
  </div>
</section>

19Gap sizes compared

The same hstack with gap-0, gap-2 and gap-4 to compare spacing.

gap-0

Item

gap-2

Item

gap-4

Item

<div class="vstack gap-3">
  <div>
    <small class="text-body-secondary">gap-0</small>
    <div class="hstack gap-0">
      <div class="p-2 bg-primary-subtle border border-primary-subtle rounded small">
        Item
      </div>
      <div class="p-2 bg-primary-subtle border border-primary-subtle rounded small">
        Item
      </div>
      <div class="p-2 bg-primary-subtle border border-primary-subtle rounded small">
        Item
      </div>
      <div class="p-2 bg-primary-subtle border border-primary-subtle rounded small">
        Item
      </div>
    </div>
  </div>
  <div>
    <small class="text-body-secondary">gap-2</small>
    <div class="hstack gap-2">
      <div class="p-2 bg-primary-subtle border border-primary-subtle rounded small">
        Item
      </div>
      <div class="p-2 bg-primary-subtle border border-primary-subtle rounded small">
        Item
      </div>
      <div class="p-2 bg-primary-subtle border border-primary-subtle rounded small">
        Item
      </div>
      <div class="p-2 bg-primary-subtle border border-primary-subtle rounded small">
        Item
      </div>
    </div>
  </div>
  <div>
    <small class="text-body-secondary">gap-4</small>
    <div class="hstack gap-4">
      <div class="p-2 bg-primary-subtle border border-primary-subtle rounded small">
        Item
      </div>
      <div class="p-2 bg-primary-subtle border border-primary-subtle rounded small">
        Item
      </div>
      <div class="p-2 bg-primary-subtle border border-primary-subtle rounded small">
        Item
      </div>
      <div class="p-2 bg-primary-subtle border border-primary-subtle rounded small">
        Item
      </div>
    </div>
  </div>
</div>

20Responsive stack direction

Stacks are vertical on phones and switch to a row from md with flex-md-row.

PlanEvery payment appears instantly, with receipts matched automatically.

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

LaunchIssue virtual and physical cards to your team with limits you control.

<div class="vstack flex-md-row gap-3">
  <div class="p-3 border rounded flex-fill">
    <strong class="d-block"><i class="bi bi-pencil" aria-hidden="true"></i> Plan</strong><small>Every payment appears instantly, with receipts matched automatically.</small>
  </div>
  <div class="p-3 border rounded flex-fill">
    <strong class="d-block"><i class="bi bi-hammer" aria-hidden="true"></i> Build</strong><small>Send and receive money in more than 30 currencies at fair exchange rates.</small>
  </div>
  <div class="p-3 border rounded flex-fill">
    <strong class="d-block"><i class="bi bi-rocket-takeoff" aria-hidden="true"></i> Launch</strong><small>Issue virtual and physical cards to your team with limits you control.</small>
  </div>
</div>