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-3.svg" alt="Lea Harlow" width="48" height="48" class="rounded-circle">
<div class="vstack gap-0">
<strong>Lea Harlow</strong> <small class="text-body-secondary">Project Manager · Porto</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">
The mobile app downloads lessons, so you can learn on the train.
</div>
<small class="ms-auto text-nowrap text-body-secondary">1 days 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">
Guided learning paths take you from beginner to job-ready step by step.
</div>
<small class="ms-auto text-nowrap text-body-secondary">23 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">
Mentors review your projects and give feedback within two days.
</div>
<small class="ms-auto text-nowrap text-body-secondary">6 days 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 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.
Lifetime access
Instructors are working professionals who teach what they use every day.
Expert mentors
We measure success by how many students come back and tell their friends.
Lifetime access
Earn a certificate at the end of each course and share it with employers.
<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">Lifetime access</h3>
<p class="small mb-0">Instructors are working professionals who teach what they use every day.</p>
</div>
</div>
</div>
<div class="card">
<div class="card-body hstack gap-3">
<span class="fs-3 text-primary"><i class="bi bi-graph-up" aria-hidden="true"></i></span>
<div>
<h3 class="h6 mb-1">Expert mentors</h3>
<p class="small mb-0">We measure success by how many students come back and tell their friends.</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">Lifetime access</h3>
<p class="small mb-0">Earn a certificate at the end of each course and share it with employers.</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
$82.00 / 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">$82.00<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>Community forum
</div>
<div class="hstack gap-2">
<span class="text-success"><i class="bi bi-check-circle-fill" aria-hidden="true"></i></span>Mobile learning
</div>
<div class="hstack gap-2">
<span class="text-success"><i class="bi bi-check-circle-fill" aria-hidden="true"></i></span>Lifetime access
</div>
<div class="hstack gap-2">
<span class="text-success"><i class="bi bi-check-circle-fill" aria-hidden="true"></i></span>Hands-on projects
</div>
<div class="hstack gap-2">
<span class="text-success"><i class="bi bi-check-circle-fill" aria-hidden="true"></i></span>Expert mentors
</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">Cora Nest</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%">
Clear prices, honest advice and no surprises along the way.
</div>
<div class="px-3 py-2 rounded-3 small text-bg-primary align-self-end" style="max-width:80%">
Short quizzes after each lesson help new knowledge stick.
</div>
<div class="px-3 py-2 rounded-3 small bg-body-tertiary align-self-start" style="max-width:80%">
Lifetime access means you can revisit lessons whenever you need a refresher.
</div>
<div class="px-3 py-2 rounded-3 small text-bg-primary align-self-end" style="max-width:80%">
Every course is built around hands-on projects you can add to your portfolio.
</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">Marketing</span><span class="badge rounded-pill text-bg-light border">Development</span><span class="badge rounded-pill text-bg-light border">Business</span><span class="badge rounded-pill text-bg-light border">Lifestyle</span><span class="badge rounded-pill text-bg-light border">Design</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">
2.2k
</div>
<small class="text-body-secondary">Clients</small>
</div>
<div class="vr">
</div>
<div>
<div class="fs-4 fw-bold">
828
</div>
<small class="text-body-secondary">Projects</small>
</div>
<div class="vr">
</div>
<div>
<div class="fs-4 fw-bold">
4.7
</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.
What our students asked us most
Try the first lesson of any course for free before you decide.
<div class="card" style="max-width:24rem">
<div class="card-body">
<h3 class="h6">What our students asked us most</h3>
<p class="small mb-0">Try the first lesson of any course for free before you decide.</p>
</div>
<div class="card-footer hstack gap-2 small text-body-secondary">
<img src="../assets/img/avatar-11.svg" alt="" width="24" height="24" class="rounded-circle"> <span>Mateo Carter</span><span>·</span><span>Jan 10, 2026</span> <span class="ms-auto"><i class="bi bi-heart" aria-hidden="true"></i> 219</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">May 31, 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">Feb 12, 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">Oct 15, 2025</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 12, 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 lifestyle">
<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">887 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">450 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">413 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.
Every detail is handled by people who care about getting it right.
<section class="vstack gap-3 p-3 border rounded">
<div class="hstack gap-2">
<h3 class="h5 mb-0">Mentoring</h3>
<span class="badge text-bg-primary">2</span> <a class="ms-auto small" href="#">View all</a>
</div>
<p class="mb-0 small">Every detail is handled by people who care about getting it right.</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>Start in minutes and get help from a real person whenever you need it.</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 listen first, then build a plan around what you actually need.</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>Thousands of students already trust us, and we work hard to keep it that way.</small>
</div>
</div>