Flex

Flex utilities control flexbox layouts: direction, wrapping, alignment on both axes, growing, shrinking, order and gaps. Every utility has responsive variants such as flex-md-row or justify-content-lg-between, so one set of markup can stack on phones and spread out on larger screens.

1Direction

flex-row is the default, flex-row-reverse flips it, flex-column stacks items.

1

2

3

1

2

3

1

2

3

<div class="grid gap-2">
  <div class="flex gap-2 bg-surface-3 rounded-lg p-2 flex-row">
    <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
      <code class="small">1</code>
    </div>
    <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
      <code class="small">2</code>
    </div>
    <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
      <code class="small">3</code>
    </div>
  </div>
  <div class="flex gap-2 bg-surface-3 rounded-lg p-2 flex-row-reverse">
    <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
      <code class="small">1</code>
    </div>
    <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
      <code class="small">2</code>
    </div>
    <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
      <code class="small">3</code>
    </div>
  </div>
  <div class="flex gap-2 bg-surface-3 rounded-lg p-2 flex-col">
    <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
      <code class="small">1</code>
    </div>
    <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
      <code class="small">2</code>
    </div>
    <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
      <code class="small">3</code>
    </div>
  </div>
</div>

2Justify content

start, center, end, between, around and evenly distribute free space on the main axis.

A

B

A

B

A

B

A

B

A

B

A

B

<div class="grid gap-2">
  <div class="flex gap-2 bg-surface-3 rounded-lg p-2 justify-start">
    <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
      <code class="small">A</code>
    </div>
    <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
      <code class="small">B</code>
    </div>
  </div>
  <div class="flex gap-2 bg-surface-3 rounded-lg p-2 justify-center">
    <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
      <code class="small">A</code>
    </div>
    <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
      <code class="small">B</code>
    </div>
  </div>
  <div class="flex gap-2 bg-surface-3 rounded-lg p-2 justify-end">
    <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
      <code class="small">A</code>
    </div>
    <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
      <code class="small">B</code>
    </div>
  </div>
  <div class="flex gap-2 bg-surface-3 rounded-lg p-2 justify-between">
    <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
      <code class="small">A</code>
    </div>
    <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
      <code class="small">B</code>
    </div>
  </div>
  <div class="flex gap-2 bg-surface-3 rounded-lg p-2 justify-around">
    <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
      <code class="small">A</code>
    </div>
    <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
      <code class="small">B</code>
    </div>
  </div>
  <div class="flex gap-2 bg-surface-3 rounded-lg p-2 justify-evenly">
    <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
      <code class="small">A</code>
    </div>
    <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
      <code class="small">B</code>
    </div>
  </div>
</div>

3Align items

align-items-start, -center, -end and -stretch align items on the cross axis.

start

x

start

x

start

x

start

x

<div class="row g-2">
  <div class="col-6 col-md-3">
    <div class="flex gap-2 bg-surface-3 rounded-lg p-2 items-start" style="height:100px">
      <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
        <code class="small">start</code>
      </div>
      <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
        <code class="small">x</code>
      </div>
    </div>
  </div>
  <div class="col-6 col-md-3">
    <div class="flex gap-2 bg-surface-3 rounded-lg p-2 items-center" style="height:100px">
      <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
        <code class="small">start</code>
      </div>
      <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
        <code class="small">x</code>
      </div>
    </div>
  </div>
  <div class="col-6 col-md-3">
    <div class="flex gap-2 bg-surface-3 rounded-lg p-2 items-end" style="height:100px">
      <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
        <code class="small">start</code>
      </div>
      <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
        <code class="small">x</code>
      </div>
    </div>
  </div>
  <div class="col-6 col-md-3">
    <div class="flex gap-2 bg-surface-3 rounded-lg p-2 items-stretch" style="height:100px">
      <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
        <code class="small">start</code>
      </div>
      <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
        <code class="small">x</code>
      </div>
    </div>
  </div>
</div>

4Align self

align-self-* moves a single item on the cross axis.

start

center

end

stretch

<div class="flex gap-2 bg-surface-3 rounded-lg p-2" style="height:120px">
  <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center self-start">
    <code class="small">start</code>
  </div>
  <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center self-center">
    <code class="small">center</code>
  </div>
  <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center self-end">
    <code class="small">end</code>
  </div>
  <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center self-stretch">
    <code class="small">stretch</code>
  </div>
</div>

5Fill and grow

flex-fill shares space equally, flex-grow-1 takes the remaining space.

flex-fill

flex-fill wider text

fill

auto

flex-grow-1

auto

<div class="grid gap-2">
  <div class="flex gap-2 bg-surface-3 rounded-lg p-2">
    <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center flex-auto">
      <code class="small">flex-fill</code>
    </div>
    <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center flex-auto">
      <code class="small">flex-fill wider text</code>
    </div>
    <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center flex-auto">
      <code class="small">fill</code>
    </div>
  </div>
  <div class="flex gap-2 bg-surface-3 rounded-lg p-2">
    <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
      <code class="small">auto</code>
    </div>
    <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center grow">
      <code class="small">flex-grow-1</code>
    </div>
    <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
      <code class="small">auto</code>
    </div>
  </div>
</div>

6Shrink

flex-shrink-0 keeps an item at its size while the other one shrinks.

flex-shrink-0

flex-shrink-1 - The new award-winning team helps projects moving forward on any device.

<div class="flex gap-2 bg-surface-3 rounded-lg p-2">
  <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center shrink-0" style="width:140px">
    <code class="small">flex-shrink-0</code>
  </div>
  <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center shrink truncate">
    <code class="small">flex-shrink-1 - The new award-winning team helps projects moving forward on any device.</code>
  </div>
</div>

7Auto margins

ms-auto pushes an item and everything after it to the end.

Brand name 4 Docs Blog

<div class="flex items-center gap-2 border rounded-lg px-4 py-2">
  <span class="font-bold">Brand name 4</span> <a href="#" class="small link-body-emphasis">Docs</a> <a href="#" class="small link-body-emphasis">Blog</a> 
  <button type="button" class="btn btn-sm btn-primary ms-auto">Sign in</button>
</div>

8Wrap

flex-wrap lets items move to a new line; flex-nowrap keeps one line.

item

<div class="grid gap-2">
  <div class="flex gap-2 bg-surface-3 rounded-lg p-2 flex-wrap">
    <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
      <code class="small">item</code>
    </div>
    <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
      <code class="small">item</code>
    </div>
    <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
      <code class="small">item</code>
    </div>
    <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
      <code class="small">item</code>
    </div>
    <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
      <code class="small">item</code>
    </div>
    <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
      <code class="small">item</code>
    </div>
    <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
      <code class="small">item</code>
    </div>
    <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
      <code class="small">item</code>
    </div>
    <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
      <code class="small">item</code>
    </div>
    <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
      <code class="small">item</code>
    </div>
  </div>
  <div class="flex gap-2 bg-surface-3 rounded-lg p-2 flex-nowrap overflow-x-auto">
    <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
      <code class="small">item</code>
    </div>
    <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
      <code class="small">item</code>
    </div>
    <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
      <code class="small">item</code>
    </div>
    <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
      <code class="small">item</code>
    </div>
    <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
      <code class="small">item</code>
    </div>
    <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
      <code class="small">item</code>
    </div>
    <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
      <code class="small">item</code>
    </div>
    <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
      <code class="small">item</code>
    </div>
    <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
      <code class="small">item</code>
    </div>
    <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
      <code class="small">item</code>
    </div>
  </div>
</div>

9Order

order-* changes the visual order without changing the markup.

first in markup, order-3

second, order-1

third, order-2

<div class="flex gap-2 bg-surface-3 rounded-lg p-2">
  <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center order-3">
    <code class="small">first in markup, order-3</code>
  </div>
  <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center order-1">
    <code class="small">second, order-1</code>
  </div>
  <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center order-2">
    <code class="small">third, order-2</code>
  </div>
</div>

10Row gap and column gap

row-gap-* and column-gap-* set the two gaps separately.

row-gap-4

column-gap-1

c

d

e

f

g

h

i

j

k

l

<div class="flex flex-wrap gap-y-6 gap-x-1 bg-surface-3 rounded-lg p-2">
  <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
    <code class="small">row-gap-4</code>
  </div>
  <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
    <code class="small">column-gap-1</code>
  </div>
  <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
    <code class="small">c</code>
  </div>
  <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
    <code class="small">d</code>
  </div>
  <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
    <code class="small">e</code>
  </div>
  <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
    <code class="small">f</code>
  </div>
  <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
    <code class="small">g</code>
  </div>
  <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
    <code class="small">h</code>
  </div>
  <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
    <code class="small">i</code>
  </div>
  <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
    <code class="small">j</code>
  </div>
  <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
    <code class="small">k</code>
  </div>
  <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
    <code class="small">l</code>
  </div>
</div>

11Responsive direction

flex-column flex-sm-row: a sign-up form stacks on phones and sits in one row from sm.

<div class="flex flex-col sm:flex-row gap-2" style="max-width:30rem">
  <label class="sr-only" for="ut-mail-1250">Email</label>
  <input id="ut-mail-1250" type="email" class="form-control" placeholder="you@example.com"> 
  <button type="button" class="btn btn-primary whitespace-nowrap">Subscribe</button>
</div>

12Media list

Each row is d-flex with an icon box that never shrinks.

Global clients
This flexible project brings data easy to understand without extra tools.
Global clients
Our campaign production shows customers coming back all year round.

<ul class="list-unstyled mb-0 grid gap-4">
  <li class="flex gap-4"><span class="shrink-0 bg-primary-subtle text-primary rounded-lg p-2 text-lg leading-none"><i class="bi bi-lightning-charge-fill" aria-hidden="true"></i></span><div><div class="font-semibold">Global clients</div><div class="small text-muted">This flexible project brings data easy to understand without extra tools.</div></div></li>
  <li class="flex gap-4"><span class="shrink-0 bg-success-subtle text-success rounded-lg p-2 text-lg leading-none"><i class="bi bi-shield-check" aria-hidden="true"></i></span><div><div class="font-semibold">Global clients</div><div class="small text-muted">Our campaign production shows customers coming back all year round.</div></div></li>
</ul>

13Sticky footer in a card

A flex-column card with flex-grow-1 body keeps the button at the bottom regardless of text length.

A guide to content strategy

Our brand identity gives time back in your day at a fair price.

Open

A guide to motion graphics

Our web design brings results you can measure all year round. A flexible release gives decisions quicker and clearer from the very first day. A powerful dashboard gives time back in your day from the very first day.

Open

<div class="row g-3">
  <div class="col-6">
    <div class="flex flex-col border rounded-lg p-4 h-full">
      <div class="font-semibold">
        A guide to content strategy
      </div>
      <p class="small grow">Our brand identity gives time back in your day at a fair price.</p>
      <a href="#" class="btn btn-sm btn-outline-primary">Open</a>
    </div>
  </div>
  <div class="col-6">
    <div class="flex flex-col border rounded-lg p-4 h-full">
      <div class="font-semibold">
        A guide to motion graphics
      </div>
      <p class="small grow">Our web design brings results you can measure all year round. A flexible release gives decisions quicker and clearer from the very first day. A powerful dashboard gives time back in your day from the very first day.</p>
      <a href="#" class="btn btn-sm btn-outline-primary">Open</a>
    </div>
  </div>
</div>

14Align content

align-content-* distributes wrapped lines in a taller container.

align-content-between

b

c

d

e

f

g

h

i

j

<div class="flex flex-wrap content-between gap-2 bg-surface-3 rounded-lg p-2" style="height:160px">
  <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
    <code class="small">align-content-between</code>
  </div>
  <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
    <code class="small">b</code>
  </div>
  <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
    <code class="small">c</code>
  </div>
  <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
    <code class="small">d</code>
  </div>
  <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
    <code class="small">e</code>
  </div>
  <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
    <code class="small">f</code>
  </div>
  <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
    <code class="small">g</code>
  </div>
  <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
    <code class="small">h</code>
  </div>
  <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
    <code class="small">i</code>
  </div>
  <div class="bg-primary-subtle border border-primary/30 rounded-md p-2 text-center">
    <code class="small">j</code>
  </div>
</div>

15Baseline alignment

align-items-baseline lines up text of different sizes on its baseline.

$23.32/ monthbilled yearly

<div class="flex items-baseline gap-2">
  <span class="display-6 font-bold">$23.32</span><span class="text-muted">/ month</span><span class="small text-success">billed yearly</span> 
</div>

16Horizontal stack

hstack is a shortcut for a centred flex row with gap.

product Focused ways to improve your journey

<div class="hstack gap-2 border rounded-lg p-2">
  <span class="badge text-bg-primary">product</span> <span class="small">Focused ways to improve your journey</span> 
  <div class="vr ms-auto">
  </div>
  <button type="button" class="btn btn-sm btn-light">Edit</button>
</div>

17Vertical stack

vstack is a flex column with gap: quick form or card layouts.

Strategy, design and code under one roof

A modern story makes decisions quicker and clearer wherever you are.

<div class="vstack gap-2 border rounded-lg p-4" style="max-width:20rem">
  <div class="font-semibold">
    Strategy, design and code under one roof
  </div>
  <div class="small text-muted">
    A modern story makes decisions quicker and clearer wherever you are.
  </div>
  <button type="button" class="btn btn-primary btn-sm">Join waitlist</button>
</div>

18Responsive justify

justify-content-center justify-content-md-between centres on phones and spreads from md.

Showing 1-10 of 281

<div class="flex flex-wrap justify-center md:justify-between items-center gap-2 border rounded-lg p-4">
  <span class="small text-muted">Showing 1-10 of 281</span> 
  <div class="flex gap-1">
    <button type="button" class="btn btn-sm btn-light border">Prev</button>
    <button type="button" class="btn btn-sm btn-light border">Next</button>
  </div>
</div>

19Equal width columns with flex-fill

Navigation tabs share the row equally with flex-fill and text-center.

<nav class="flex border rounded-lg overflow-hidden" aria-label="Period">
  <a href="#" class="flex-auto text-center py-2 text-bg-primary no-underline" aria-current="page">Day</a> <a href="#" class="flex-auto text-center py-2 link-body-emphasis no-underline border-s">Week</a> <a href="#" class="flex-auto text-center py-2 link-body-emphasis no-underline border-s">Month</a> <a href="#" class="flex-auto text-center py-2 link-body-emphasis no-underline border-s">Year</a> 
</nav>

20Reverse on large screens

flex-column flex-lg-row-reverse: on large screens the image moves to the right.

Strategy, design and code under one roof

We design brands people remember

This honest routine makes new ideas to life in just a few clicks. The new award-winning team keeps the whole team on the same page at a fair price.

<div class="flex flex-col lg:flex-row-reverse gap-4 lg:items-center">
  <img src="../assets/img/photo-12.svg" alt="Strategy, design and code under one roof" class="rounded-xl w-full" style="max-width:20rem"> 
  <div>
    <h3 class="h5 font-semibold">We design brands people remember</h3>
    <p class="small text-muted mb-0">This honest routine makes new ideas to life in just a few clicks. The new award-winning team keeps the whole team on the same page at a fair price.</p>
  </div>
</div>