Layout
Utilities #
Margin utilities are the easiest way to add some structure to forms. They provide basic grouping of labels, controls,
optional form text, and form validation messaging. We recommend sticking to
margin-bottom
utilities, and using a single direction throughout the form for consistency.
Feel free to build your forms however you like, with
<fieldset>
s,
<div>
s, or nearly any other element.
<div class="mb-4">
<label for="formGroupExampleInput" class="form-label">Example label</label
><input
type="text"
class="form-control"
id="formGroupExampleInput"
placeholder="Example input placeholder"
/>
</div>
<div>
<label for="formGroupExampleInput2" class="form-label">Another label</label
><input
type="text"
class="form-control"
id="formGroupExampleInput2"
placeholder="Another input placeholder"
/>
</div>
Form Grid #
More complex forms can be built using our grid classes. Use these for form layouts that require multiple columns, varied widths, and additional alignment options.
<div class="row">
<div class="col">
<input
type="text"
class="form-control"
placeholder="First name"
aria-label="First name"
/>
</div>
<div class="col">
<input
type="text"
class="form-control"
placeholder="Last name"
aria-label="Last name"
/>
</div>
</div>
Gutters #
By adding gutter modifier classes, you can have control over the gutter width in as well the inline as block direction.
<div class="row g-3">
<div class="col">
<input
type="text"
class="form-control"
placeholder="First name"
aria-label="First name"
/>
</div>
<div class="col">
<input
type="text"
class="form-control"
placeholder="Last name"
aria-label="Last name"
/>
</div>
</div>
More complex layouts can also be created with the grid system.
<form class="row g-4">
<div class="col-md-6">
<label for="inputEmail4" class="form-label">Email</label
><input type="email" class="form-control" id="inputEmail4" />
</div>
<div class="col-md-6">
<label for="inputPassword4" class="form-label">Password</label
><input type="password" class="form-control" id="inputPassword4" />
</div>
<div class="col-12">
<label for="inputAddress" class="form-label">Address</label
><input
type="text"
class="form-control"
id="inputAddress"
placeholder="1234 Main St"
/>
</div>
<div class="col-12">
<label for="inputAddress2" class="form-label">Address 2</label
><input
type="text"
class="form-control"
id="inputAddress2"
placeholder="Apartment, studio, or floor"
/>
</div>
<div class="col-md-6">
<label for="inputCity" class="form-label">City</label
><input type="text" class="form-control" id="inputCity" />
</div>
<div class="col-md-4">
<label for="inputState" class="form-label">State</label
><select id="inputState" class="form-select">
<option selected="">Choose...</option>
<option>...</option>
</select>
</div>
<div class="col-md-2">
<label for="inputZip" class="form-label">Zip</label
><input type="text" class="form-control" id="inputZip" />
</div>
<div class="col-12">
<div class="form-check">
<input type="checkbox" class="form-check-input" id="gridCheck" /><label
class="form-check-label"
for="gridCheck"
>Check me out</label
>
</div>
</div>
<div class="col-12">
<button type="submit" class="btn btn-primary">Sign in</button>
</div>
</form>
Horizontal Form #
Create horizontal forms with the grid by adding the
.row
class to form groups and using the
.col-*-*
classes to specify the width of your labels and controls. Be sure to add
.col-form-label
to your
<label>
s as well so they're vertically centered with their associated form controls.
At times, you maybe need to use margin or padding utilities to create that perfect alignment you need. For example,
we've removed the
padding-top
on our stacked radio inputs label to better align the text baseline.
<form>
<div class="row mb-4">
<label for="inputEmail3" class="col-sm-2 col-form-label">Email</label>
<div class="col-sm-10">
<input type="email" class="form-control" id="inputEmail3" />
</div>
</div>
<div class="row mb-4">
<label for="inputPassword3" class="col-sm-2 col-form-label">Password</label>
<div class="col-sm-10">
<input type="password" class="form-control" id="inputPassword3" />
</div>
</div>
<fieldset class="row mb-4">
<legend class="col-form-label col-sm-2 pt-0">Radios</legend>
<div class="col-sm-10">
<div class="form-check">
<input
type="radio"
class="form-check-input"
name="gridRadios"
id="gridRadios1"
value="option1"
checked=""
/><label class="form-check-label" for="gridRadios1">First radio</label>
</div>
<div class="form-check">
<input
type="radio"
class="form-check-input"
name="gridRadios"
id="gridRadios2"
value="option2"
/><label class="form-check-label" for="gridRadios2">Second radio</label>
</div>
<div class="form-check disabled">
<input
type="radio"
class="form-check-input"
name="gridRadios"
id="gridRadios3"
disabled=""
value="option3"
/><label class="form-check-label" for="gridRadios3"
>Third disabled radio</label
>
</div>
</div>
</fieldset>
<div class="row mb-4">
<div class="col-sm-10 offset-sm-2">
<div class="form-check">
<input type="checkbox" class="form-check-input" id="gridCheck1" /><label
class="form-check-label"
for="gridCheck1"
>Example checkbox</label
>
</div>
</div>
</div>
<button type="submit" class="btn btn-primary">Sign in</button>
</form>
Horizontal Form Label Sizing #
Be sure to use
.col-form-label-sm
or
.col-form-label-lg
to your
<label>
s or
<legend>
s to correctly follow the size of
.form-control-lg
and
.form-control-sm
.
<div class="row mb-4">
<label for="colFormLabelSm" class="col-sm-2 col-form-label col-form-label-sm"
>Email</label
>
<div class="col-sm-10">
<input
type="email"
class="form-control form-control-sm"
id="colFormLabelSm"
placeholder="col-form-label-sm"
/>
</div>
</div>
<div class="row mb-4">
<label for="colFormLabel" class="col-sm-2 col-form-label">Email</label>
<div class="col-sm-10">
<input
type="email"
class="form-control"
id="colFormLabel"
placeholder="col-form-label"
/>
</div>
</div>
<div class="row">
<label for="colFormLabelLg" class="col-sm-2 col-form-label col-form-label-lg"
>Email</label
>
<div class="col-sm-10">
<input
type="email"
class="form-control form-control-lg"
id="colFormLabelLg"
placeholder="col-form-label-lg"
/>
</div>
</div>
Column Sizing #
As shown in the previous examples, our grid system allows you to place any number of
.col
s within a
.row
. They'll split the available width equally between them. You may also pick a subset of your columns to take up more or
less space, while the remaining
.col
s equally split the rest, with specific column classes like
.col-sm-7
.
<div class="row g-4">
<div class="col-sm-7">
<input type="text" class="form-control" placeholder="City" aria-label="City" />
</div>
<div class="col-sm">
<input type="text" class="form-control" placeholder="State" aria-label="State" />
</div>
<div class="col-sm">
<input type="text" class="form-control" placeholder="Zip" aria-label="Zip" />
</div>
</div>
Auto-sizing #
The example below uses a flexbox utility to vertically center the contents and changes
.col
to
.col-auto
so that your columns only take up as much space as needed. Put another way, the column sizes itself based on the contents.
<form class="row g-4 align-items-center">
<div class="col-auto">
<label class="visually-hidden" for="autoSizingInput">Name</label
><input
type="text"
class="form-control"
id="autoSizingInput"
placeholder="Jane Doe"
/>
</div>
<div class="col-auto">
<label class="visually-hidden" for="autoSizingInputGroup">Username</label>
<div class="input-group">
<div class="input-group-text">@</div>
<input
type="text"
class="form-control"
id="autoSizingInputGroup"
placeholder="Username"
/>
</div>
</div>
<div class="col-auto">
<label class="visually-hidden" for="autoSizingSelect">Preference</label
><select class="form-select" id="autoSizingSelect">
<option selected="">Choose...</option>
<option value="1">One</option>
<option value="2">Two</option>
<option value="3">Three</option>
</select>
</div>
<div class="col-auto">
<div class="form-check">
<input type="checkbox" class="form-check-input" id="autoSizingCheck" /><label
class="form-check-label"
for="autoSizingCheck"
>Remember me</label
>
</div>
</div>
<div class="col-auto">
<button type="submit" class="btn btn-primary">Submit</button>
</div>
</form>
You can then remix that once again with size-specific column classes.
<form class="row g-4 align-items-center">
<div class="col-sm-3">
<label class="visually-hidden" for="specificSizeInputName">Name</label
><input
type="text"
class="form-control"
id="specificSizeInputName"
placeholder="Jane Doe"
/>
</div>
<div class="col-sm-3">
<label class="visually-hidden" for="specificSizeInputGroupUsername"
>Username</label
>
<div class="input-group">
<div class="input-group-text">@</div>
<input
type="text"
class="form-control"
id="specificSizeInputGroupUsername"
placeholder="Username"
/>
</div>
</div>
<div class="col-sm-3">
<label class="visually-hidden" for="specificSizeSelect">Preference</label
><select class="form-select" id="specificSizeSelect">
<option selected="">Choose...</option>
<option value="1">One</option>
<option value="2">Two</option>
<option value="3">Three</option>
</select>
</div>
<div class="col-auto">
<div class="form-check">
<input type="checkbox" class="form-check-input" id="autoSizingCheck2" /><label
class="form-check-label"
for="autoSizingCheck2"
>Remember me</label
>
</div>
</div>
<div class="col-auto">
<button type="submit" class="btn btn-primary">Submit</button>
</div>
</form>
Inline Forms #
Use the
.row-cols-*
classes to create responsive horizontal layouts. By adding gutter modifier classes, we'll have gutters in horizontal
and vertical directions. On narrow mobile viewports, the
.col-12
helps stack the form controls and more. The
.align-items-center
aligns the form elements to the middle, making the
.form-checkbox
align properly.
<form class="row row-cols-lg-auto g-4 align-items-center">
<div class="col-12">
<label class="visually-hidden" for="inlineFormInputGroupUsername">Username</label>
<div class="input-group">
<div class="input-group-text">@</div>
<input
type="text"
class="form-control"
id="inlineFormInputGroupUsername"
placeholder="Username"
/>
</div>
</div>
<div class="col-12">
<label class="visually-hidden" for="inlineFormSelectPref">Preference</label
><select class="form-select" id="inlineFormSelectPref">
<option selected="">Choose...</option>
<option value="1">One</option>
<option value="2">Two</option>
<option value="3">Three</option>
</select>
</div>
<div class="col-12">
<div class="form-check">
<input type="checkbox" class="form-check-input" id="inlineFormCheck" /><label
class="form-check-label"
for="inlineFormCheck"
>Remember me</label
>
</div>
</div>
<div class="col-12">
<button type="submit" class="btn btn-primary">Submit</button>
</div>
</form>