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.
<div class="hstack gap-3 p-3 border rounded">
<img src="../assets/img/avatar-5.svg" alt="Felix Larsen" width="48" height="48" class="rounded-circle">
<div class="vstack gap-0">
<strong>Felix Larsen</strong> <small class="text-body-secondary">HR Partner · Prague</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.
<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">
Same-day appointments are available for urgent needs on weekdays.
</div>
<small class="ms-auto text-nowrap text-body-secondary">yesterday</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">
Family plans cover check-ups and vaccinations for everyone under one roof.
</div>
<small class="ms-auto text-nowrap text-body-secondary">yesterday</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">
Book online in two minutes and see a doctor as soon as today.
</div>
<small class="ms-auto text-nowrap text-body-secondary">24 min ago</small>
</div>
</div>5Centred button stack
vstack with col-md-5 mx-auto centres full-width buttons, as on a mobile landing screen.
<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 14 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.
Same-day appointments
Thousands of patients already trust us, and we work hard to keep it that way.
Reminders
Start in minutes and get help from a real person whenever you need it.
Insurance friendly
Video consultations let you speak with a doctor from the comfort of home.
<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">Same-day appointments</h3>
<p class="small mb-0">Thousands of patients already trust us, and we work hard to keep it that way.</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">Reminders</h3>
<p class="small mb-0">Start in minutes and get help from a real person whenever you need it.</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">Insurance friendly</h3>
<p class="small mb-0">Video consultations let you speak with a doctor from the comfort of home.</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
$65.71 / month
<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">$65.71<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>Family plans
</div>
<div class="hstack gap-2">
<span class="text-success"><i class="bi bi-check-circle-fill" aria-hidden="true"></i></span>Insurance friendly
</div>
<div class="hstack gap-2">
<span class="text-success"><i class="bi bi-check-circle-fill" aria-hidden="true"></i></span>Reminders
</div>
<div class="hstack gap-2">
<span class="text-success"><i class="bi bi-check-circle-fill" aria-hidden="true"></i></span>Same-day appointments
</div>
<div class="hstack gap-2">
<span class="text-success"><i class="bi bi-check-circle-fill" aria-hidden="true"></i></span>Certified specialists
</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">Glowix Studio</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">© 2026</span>
</footer>10Chat bubbles
A vstack where align-self-start and align-self-end place incoming and outgoing messages.
<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 records are private, secure and always available when you need them.
</div>
<div class="px-3 py-2 rounded-3 small text-bg-primary align-self-end" style="max-width:80%">
We listen first, then build a plan around what you actually need.
</div>
<div class="px-3 py-2 rounded-3 small bg-body-tertiary align-self-start" style="max-width:80%">
We work with most insurance providers and explain any costs upfront.
</div>
<div class="px-3 py-2 rounded-3 small text-bg-primary align-self-end" style="max-width:80%">
Friendly reminders make sure you never miss a check-up or a dose.
</div>
</div>11Wrapping tag row
hstack plus flex-wrap and gap-1 keeps tags tidy when they run onto a second line.
<div class="hstack flex-wrap gap-1">
<span class="badge rounded-pill text-bg-light border">Cardiology</span><span class="badge rounded-pill text-bg-light border">Orthopedics</span><span class="badge rounded-pill text-bg-light border">Pediatrics</span><span class="badge rounded-pill text-bg-light border">Dermatology</span><span class="badge rounded-pill text-bg-light border">Dental</span>
</div>12Settings rows
Each setting is an hstack with the label on the left and a switch pushed right with ms-auto.
<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.
<div class="hstack gap-3 gap-md-4 p-3 border rounded justify-content-center text-center">
<div>
<div class="fs-4 fw-bold">
7.7k
</div>
<small class="text-body-secondary">Clients</small>
</div>
<div class="vr">
</div>
<div>
<div class="fs-4 fw-bold">
369
</div>
<small class="text-body-secondary">Projects</small>
</div>
<div class="vr">
</div>
<div>
<div class="fs-4 fw-bold">
4.6
</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.
Looking back at a busy season
Children are welcome, and our paediatric team knows how to make them smile.
<div class="card" style="max-width:24rem">
<div class="card-body">
<h3 class="h6">Looking back at a busy season</h3>
<p class="small mb-0">Children are welcome, and our paediatric team knows how to make them smile.</p>
</div>
<div class="card-footer hstack gap-2 small text-body-secondary">
<img src="../assets/img/avatar-3.svg" alt="" width="24" height="24" class="rounded-circle"> <span>Kenji Haddad</span><span>·</span><span>May 23, 2026</span> <span class="ms-auto"><i class="bi bi-heart" aria-hidden="true"></i> 57</span>
</div>
</div>15Order timeline
A vstack of steps, each an hstack of status badge and text.
<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">Dec 4, 2025</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">Jul 21, 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">Apr 22, 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 Oct 30, 2026</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 orthopedics">
<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.
<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-2026.pdf</span><small class="text-body-secondary">555 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-2026.docx</span><small class="text-body-secondary">470 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-2025.xlsx</span><small class="text-body-secondary">373 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.
We keep things simple, so you can focus on what matters to you.
<section class="vstack gap-3 p-3 border rounded">
<div class="hstack gap-2">
<h3 class="h5 mb-0">Dental care</h3>
<span class="badge text-bg-primary">28</span> <a class="ms-auto small" href="#">View all</a>
</div>
<p class="mb-0 small">We keep things simple, so you can focus on what matters to you.</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.
<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.
<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>Our team has done this many times, so you never have to guess.</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>We measure success by how many patients come back and tell their friends.</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>Video consultations let you speak with a doctor from the comfort of home.</small>
</div>
</div>