rooty/Bootstrap
0
0
Fork 0
mirror of https://github.com/twbs/bootstrap.git synced 2024-12-01 13:24:25 +01:00
Code Issues Actions Packages Releases Activity

rearrange, new examples, new docs

Browse Source
This commit is contained in:
Mark Otto 2017-06-13 22:11:44 -07:00
parent 7e5085b407
commit dc71bee83e
1 changed files with 439 additions and 575 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1014
docs/4.0/components/forms.md
View File

@ -6,13 +6,15 @@ group: components
toc: true
---
## Form controls
## Overview
Bootstrap's form controls expand on [our Rebooted form styles]({{ site.baseurl }}/docs/{{ site.docs_version }}/content/reboot/#forms) with classes. Use these classes to opt into their customized displays for a more consistent rendering across browsers and devices. The example form below demonstrates common HTML form elements that receive updated styles from Bootstrap with additional classes.
Be sure to use an appropriate `type` attribute on all inputs (e.g., `email` for email address or `number` for numerical information).
Be sure to use an appropriate `type` attribute on all inputs (e.g., `email` for email address or `number` for numerical information) to take advantage of newer input controls like email verification, number selection, and more.
### Example
## Example
Here's a quick example to demonstrate Bootstrap's form styles. Keep reading for documentation on required classes, form layout, and more.
{% example html %}
<form>
@ -25,56 +27,6 @@ Be sure to use an appropriate `type` attribute on all inputs (e.g., `email` for
<label for="exampleInputPassword1">Password</label>
<input type="password" class="form-control" id="exampleInputPassword1" placeholder="Password">
</div>
<div class="form-group">
<label for="exampleSelect1">Example select</label>
<select class="form-control" id="exampleSelect1">
<option>1</option>
<option>2</option>
<option>3</option>
<option>4</option>
<option>5</option>
</select>
</div>
<div class="form-group">
<label for="exampleSelect2">Example multiple select</label>
<select multiple class="form-control" id="exampleSelect2">
<option>1</option>
<option>2</option>
<option>3</option>
<option>4</option>
<option>5</option>
</select>
</div>
<div class="form-group">
<label for="exampleTextarea">Example textarea</label>
<textarea class="form-control" id="exampleTextarea" rows="3"></textarea>
</div>
<div class="form-group">
<label for="exampleInputFile">File input</label>
<input type="file" class="form-control-file" id="exampleInputFile" aria-describedby="fileHelp">
<small id="fileHelp" class="form-text text-muted">This is some placeholder block-level help text for the above input. It's a bit lighter and easily wraps to a new line.</small>
</div>
<fieldset class="form-group">
<legend>Radio buttons</legend>
<div class="form-check">
<label class="form-check-label">
<input type="radio" class="form-check-input" name="optionsRadios" id="optionsRadios1" value="option1" checked>
Option one is this and that&mdash;be sure to include why it's great
</label>
</div>
<div class="form-check">
<label class="form-check-label">
<input type="radio" class="form-check-input" name="optionsRadios" id="optionsRadios2" value="option2">
Option two can be something else and selecting it will deselect option one
</label>
</div>
<div class="form-check disabled">
<label class="form-check-label">
<input type="radio" class="form-check-input" name="optionsRadios" id="optionsRadios3" value="option3" disabled>
Option three is disabled
</label>
</div>
</fieldset>
<div class="form-check">
<label class="form-check-label">
<input type="checkbox" class="form-check-input">
@ -85,457 +37,121 @@ Be sure to use an appropriate `type` attribute on all inputs (e.g., `email` for
</form>
{% endexample %}
### Supported controls
## Form controls
Below is a complete list of the specific form controls supported by Bootstrap and the classes that customize them. Additional documentation is available for each group.
Textual form controls—like `<input>`s, `<select>`s, and `<textarea>`s—are styled with the `.form-control` class. Included are styles for general appearance, focus state, sizing, and more.
<table>
<thead>
<tr>
<th>Classes</th>
<th>Used for</th>
<th>Supported variations</th>
</tr>
</thead>
<tbody>
<tr>
<td>
{% markdown %}`.form-group`{% endmarkdown %}
</td>
<td class="text-nowrap">
Any group of form controls
</td>
<td>
{% markdown %}Use with any block-level element like `<fieldset>` or `<div>`{% endmarkdown %}
</td>
</tr>
<tr>
<td rowspan="3">
{% markdown %}`.form-control`{% endmarkdown %}
</td>
<td>
Textual inputs
</td>
<td>
{% markdown %}`text`, `password`, `datetime-local`, `date`, `month`, `time`, `week`, `number`, `email`, `url`, `search`, `tel`, `color`{% endmarkdown %}
</td>
</tr>
<tr>
<td>
Select menus
</td>
<td>
{% markdown %}`multiple`, `size`{% endmarkdown %}
</td>
</tr>
<tr>
<td>
Textareas
</td>
<td>
<span class="text-muted">N/A</span>
</td>
</tr>
<tr>
<td class="text-nowrap">
{% markdown %}`.form-control-file`{% endmarkdown %}
</td>
<td>
File inputs
</td>
<td>
{% markdown %}`file`{% endmarkdown %}
</td>
</tr>
<tr>
<td class="text-nowrap">
{% markdown %}
`.form-check`
{% endmarkdown %}
</td>
<td class="text-nowrap">
Checkboxes and radios
</td>
<td>
<span class="text-muted">N/A</span>
</td>
</tr>
</tbody>
</table>
Here are examples of `.form-control` applied to each textual HTML5 `<input>` `type` (meaning, almost everything except the file, checkbox, and radio inputs).
| Type | Example |
| --- | --- |
| `text` | <input class="form-control" type="text" value="Artisanal kale" id="example-text-input"> |
| `search` | <input class="form-control" type="search" value="How do I shoot web" id="example-search-input"> |
| `email` | <input class="form-control" type="email" value="bootstrap@example.com" id="example-email-input"> |
| `url` | <input class="form-control" type="url" value="https://getbootstrap.com" id="example-url-input"> |
| `tel` | <input class="form-control" type="tel" value="1-(555)-555-5555" id="example-tel-input"> |
| `password` | <input class="form-control" type="password" value="hunter2" id="example-password-input"> |
| `number` | <input class="form-control" type="number" value="42" id="example-number-input"> |
| `datetime-local` | <input class="form-control" type="datetime-local" value="2011-08-19T13:45:00" id="example-datetime-local-input"> |
| `date` | <input class="form-control" type="date" value="2011-08-19" id="example-date-input"> |
| `month` | <input class="form-control" type="month" value="2011-08" id="example-month-input"> |
| `week` | <input class="form-control" type="week" value="2011-W33" id="example-week-input"> |
| `time` | <input class="form-control" type="time" value="13:45:00" id="example-time-input"> |
| `color` | <input class="form-control" type="color" value="#563d7c" id="example-color-input"> |
## Layout
Since Bootstrap applies `display: block` and `width: 100%` to almost all our form controls, forms will by default stack vertically. Additional classes can be used to vary this layout on a per-form basis.
### Form groups
The `.form-group` class is the easiest way to add some structure to forms. Its only purpose is to provide `margin-bottom` around a label and control pairing. As a bonus, since it's a class you can use it with `<fieldset>`s, `<div>`s, or nearly any other element.
Be sure to explore our [custom forms](#custom-forms) to further style `<select>`s.
{% example html %}
<form>
<div class="form-group">
<label class="form-control-label" for="formGroupExampleInput">Example label</label>
<input type="text" class="form-control" id="formGroupExampleInput" placeholder="Example input">
<label for="exampleFormControlInput1">Email address</label>
<input type="email" class="form-control" id="exampleFormControlInput1" placeholder="name@example.com">
</div>
<div class="form-group">
<label class="form-control-label" for="formGroupExampleInput2">Another label</label>
<input type="text" class="form-control" id="formGroupExampleInput2" placeholder="Another input">
<label for="exampleFormControlSelect1">Example select</label>
<select class="form-control" id="exampleFormControlSelect1">
<option>1</option>
<option>2</option>
<option>3</option>
<option>4</option>
<option>5</option>
</select>
</div>
<div class="form-group">
<label for="exampleFormControlSelect2">Example multiple select</label>
<select multiple class="form-control" id="exampleFormControlSelect2">
<option>1</option>
<option>2</option>
<option>3</option>
<option>4</option>
<option>5</option>
</select>
</div>
<div class="form-group">
<label for="exampleFormControlTextarea1">Example textarea</label>
<textarea class="form-control" id="exampleFormControlTextarea1" rows="3"></textarea>
</div>
</form>
{% endexample %}
### Grid
For file inputs, swap the `.form-control` for `.form-control-file`.
{% example html %}
<form>
<div class="row gutters-sm">
<div class="col">
<input type="text" class="form-control" placeholder="First name">
</div>
<div class="col">
<input type="text" class="form-control" placeholder="Last name">
</div>
</div>
</form>
{% endexample html %}
{% example html %}
<form>
<div class="row gutters-sm">
<div class="col-7">
<input type="text" class="form-control" placeholder="City">
</div>
<div class="col">
<input type="text" class="form-control" placeholder="State">
</div>
<div class="col">
<input type="text" class="form-control" placeholder="Zip">
</div>
</div>
</form>
{% endexample html %}
{% example html %}
<form>
<div class="row gutters-sm align-items-center">
<div class="col">
<label class="sr-only" for="inlineFormInput">Name</label>
<input type="text" class="form-control mb-2 mb-sm-0" id="inlineFormInput" placeholder="Jane Doe">
</div>
<div class="col">
<label class="sr-only" for="inlineFormInputGroup">Username</label>
<div class="input-group mb-2 mb-sm-0">
<div class="input-group-addon">@</div>
<input type="text" class="form-control" id="inlineFormInputGroup" placeholder="Username">
</div>
</div>
<div class="col">
<div class="form-check mb-2 mb-sm-0">
<label class="form-check-label">
<input class="form-check-input" type="checkbox"> Remember me
</label>
</div>
</div>
<div class="col">
<button type="submit" class="btn btn-primary">Submit</button>
</div>
<div class="form-group">
<label for="exampleFormControlFile1">Example file input</label>
<input type="file" class="form-control-file" id="exampleFormControlFile1">
</div>
</form>
{% endexample %}
### Sizing
Set heights using classes like `.form-control-lg` and `.form-control-sm`.
{% example html %}
<input class="form-control form-control-lg" type="text" placeholder=".form-control-lg">
<input class="form-control" type="text" placeholder="Default input">
<input class="form-control form-control-sm" type="text" placeholder=".form-control-sm">
{% endexample %}
{% example html %}
<select class="form-control form-control-lg">
<option>Large select</option>
</select>
<select class="form-control">
<option>Default select</option>
</select>
<select class="form-control form-control-sm">
<option>Small select</option>
</select>
{% endexample %}
### Readonly
Add the `readonly` boolean attribute on an input to prevent modification of the input's value. Read-only inputs appear lighter (just like disabled inputs), but retain the standard cursor.
{% example html %}
<input class="form-control" type="text" placeholder="Readonly input here…" readonly>
{% endexample %}
### Static
If you want to have read-only fields in your form styled as plain text, use the `.form-control-static` class to remove the default form field styling and preserve the correct margin and padding.
{% example html %}
<form>
<div class="row gutters-sm align-items-center">
<div class="col-auto">
<label class="sr-only" for="inlineFormInput">Name</label>
<input type="text" class="form-control mb-2 mb-sm-0" id="inlineFormInput" placeholder="Jane Doe">
<div class="form-group row">
<label for="staticEmail" class="col-sm-2 col-form-label">Email</label>
<div class="col-sm-10">
<input type="text" readonly class="form-control-static" id="staticEmail" value="email@example.com">
</div>
<div class="col-auto">
<label class="sr-only" for="inlineFormInputGroup">Username</label>
<div class="input-group mb-2 mb-sm-0">
<div class="input-group-addon">@</div>
<input type="text" class="form-control" id="inlineFormInputGroup" placeholder="Username">
</div>
</div>
<div class="col-auto">
<div class="form-check mb-2 mb-sm-0">
<label class="form-check-label">
<input class="form-check-input" type="checkbox"> Remember me
</label>
</div>
</div>
<div class="col-auto">
<button type="submit" class="btn btn-primary">Submit</button>
</div>
<div class="form-group row">
<label for="inputPassword" class="col-sm-2 col-form-label">Password</label>
<div class="col-sm-10">
<input type="password" class="form-control" id="inputPassword" placeholder="Password">
</div>
</div>
</form>
{% endexample %}
{% example html %}
<form>
<div class="row gutters-sm align-items-center">
<div class="col-sm-3">
<label class="sr-only" for="inlineFormInput">Name</label>
<input type="text" class="form-control mb-2 mb-sm-0" id="inlineFormInput" placeholder="Jane Doe">
</div>
<div class="col-sm-3">
<label class="sr-only" for="inlineFormInputGroup">Username</label>
<div class="input-group mb-2 mb-sm-0">
<div class="input-group-addon">@</div>
<input type="text" class="form-control" id="inlineFormInputGroup" placeholder="Username">
</div>
</div>
<div class="col-auto">
<div class="form-check mb-2 mb-sm-0">
<label class="form-check-label">
<input class="form-check-input" type="checkbox"> Remember me
</label>
</div>
</div>
<div class="col-auto">
<button type="submit" class="btn btn-primary">Submit</button>
</div>
</div>
</form>
{% endexample %}
{% example html %}
<form>
<div class="row gutters-sm align-items-center">
<div class="col-auto">
<label class="mr-sm-2" for="inlineFormCustomSelect">Preference</label>
<select class="custom-select mb-2 mr-sm-2 mb-sm-0" id="inlineFormCustomSelect">
<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">
<label class="custom-control custom-checkbox mb-2 mr-sm-2 mb-sm-0">
<input type="checkbox" class="custom-control-input">
<span class="custom-control-indicator"></span>
<span class="custom-control-description">Remember my preference</span>
</label>
</div>
<div class="col-auto">
<button type="submit" class="btn btn-primary">Submit</button>
</div>
</div>
</form>
{% endexample %}
### Inline forms
Use the `.form-inline` class to display a series of labels, form controls, and buttons on a single horizontal row. Form controls within inline forms vary slightly from their default states.
- Controls are `display: flex`, collapsing any HTML white space and allowing you to provide alignment control with [spacing]({{ site.baseurl }}/docs/{{ site.docs_version }}/utilities/spacing/) and [flexbox]({{ site.baseurl }}/docs/{{ site.docs_version }}/utilities/flexbox/) utilities.
- Controls and input groups receive `width: auto` to override the Bootstrap default `width: 100%`.
- Controls **only appear inline in viewports that are at least 576px wide** to account for narrow viewports on mobile devices.
You may need to manually address the width and alignment of individual form controls with [spacing utilities]({{ site.baseurl }}/docs/{{ site.docs_version }}/utilities/spacing/) (as shown below). Lastly, be sure to always include a `<label>` with each form control, even if you need to hide it from non-screenreader visitors with `.sr-only`.
{% example html %}
<form class="form-inline">
<label class="sr-only" for="inlineFormInput">Name</label>
<input type="text" class="form-control mb-2 mr-sm-2 mb-sm-0" id="inlineFormInput" placeholder="Jane Doe">
<label class="sr-only" for="inlineFormInputGroup">Username</label>
<div class="input-group mb-2 mr-sm-2 mb-sm-0">
<div class="input-group-addon">@</div>
<input type="text" class="form-control" id="inlineFormInputGroup" placeholder="Username">
<div class="form-group">
<label for="staticEmail2" class="sr-only">Email</label>
<input type="text" readonly class="form-control-static" id="staticEmail2" value="email@example.com">
</div>
<div class="form-check mb-2 mr-sm-2 mb-sm-0">
<label class="form-check-label">
<input class="form-check-input" type="checkbox"> Remember me
</label>
<div class="form-group mx-sm-3">
<label for="inputPassword2" class="sr-only">Password</label>
<input type="password" class="form-control" id="inputPassword2" placeholder="Password">
</div>
<button type="submit" class="btn btn-primary">Submit</button>
<button type="submit" class="btn btn-primary">Confirm identity</button>
</form>
{% endexample %}
Custom form controls and selects are also supported.
{% example html %}
<form class="form-inline">
<label class="mr-sm-2" for="inlineFormCustomSelect">Preference</label>
<select class="custom-select mb-2 mr-sm-2 mb-sm-0" id="inlineFormCustomSelect">
<option selected>Choose...</option>
<option value="1">One</option>
<option value="2">Two</option>
<option value="3">Three</option>
</select>
<label class="custom-control custom-checkbox mb-2 mr-sm-2 mb-sm-0">
<input type="checkbox" class="custom-control-input">
<span class="custom-control-indicator"></span>
<span class="custom-control-description">Remember my preference</span>
</label>
<button type="submit" class="btn btn-primary">Submit</button>
</form>
{% endexample %}
{% callout warning %}
#### Alternatives to hidden labels
Assistive technologies such as screen readers will have trouble with your forms if you don't include a label for every input. For these inline forms, you can hide the labels using the `.sr-only` class. There are further alternative methods of providing a label for assistive technologies, such as the `aria-label`, `aria-labelledby` or `title` attribute. If none of these are present, assistive technologies may resort to using the `placeholder` attribute, if present, but note that use of `placeholder` as a replacement for other labelling methods is not advised.
{% endcallout %}
### Using the Grid
For more structured form layouts that are also responsive, you can utilize Bootstrap's [predefined grid classes]({{ site.baseurl }}/docs/{{ site.docs_version }}/layout/grid/) or [mixins]({{ site.baseurl }}/docs/{{ site.docs_version }}/layout/grid/#sass-mixins) to create horizontal forms. Add the `.row` class to form groups and use 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. For `<legend>` elements, you can use `.col-form-legend` to make them appear similar to regular `<label>` elements.
{% example html %}
<div class="container">
<form>
<div class="form-group row">
<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" placeholder="Email">
</div>
</div>
<div class="form-group row">
<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" placeholder="Password">
</div>
</div>
<fieldset class="form-group">
<div class="row">
<legend class="col-form-legend col-sm-2">Radios</legend>
<div class="col-sm-10">
<div class="form-check">
<label class="form-check-label">
<input class="form-check-input" type="radio" name="gridRadios" id="gridRadios1" value="option1" checked>
Option one is this and that&mdash;be sure to include why it's great
</label>
</div>
<div class="form-check">
<label class="form-check-label">
<input class="form-check-input" type="radio" name="gridRadios" id="gridRadios2" value="option2">
Option two can be something else and selecting it will deselect option one
</label>
</div>
<div class="form-check disabled">
<label class="form-check-label">
<input class="form-check-input" type="radio" name="gridRadios" id="gridRadios3" value="option3" disabled>
Option three is disabled
</label>
</div>
</div>
</div>
</fieldset>
<div class="form-group row">
<div class="col-sm-2">Checkbox</div>
<div class="col-sm-10">
<div class="form-check">
<label class="form-check-label">
<input class="form-check-input" type="checkbox"> Check me out
</label>
</div>
</div>
</div>
<div class="form-group row">
<div class="offset-sm-2 col-sm-10">
<button type="submit" class="btn btn-primary">Sign in</button>
</div>
</div>
</form>
</div>
{% endexample %}
More complex layouts can also be created with the grid system.
{% example html %}
<div class="container">
<form>
<div class="row">
<div class="form-group col-md-6">
<label for="inputEmail4" class="col-form-label">Email</label>
<input type="email" class="form-control" id="inputEmail4" placeholder="Email">
</div>
<div class="form-group col-md-6">
<label for="inputPassword4" class="col-form-label">Password</label>
<input type="password" class="form-control" id="inputPassword4" placeholder="Password">
</div>
</div>
<div class="form-group">
<label for="inputAddress" class="col-form-label">Address</label>
<input type="text" class="form-control" id="inputAddress" placeholder="1234 Main St">
</div>
<div class="form-group">
<label for="inputAddress2" class="col-form-label">Address 2</label>
<input type="text" class="form-control" id="inputAddress2" placeholder="Apartment, studio, or floor">
</div>
<div class="row">
<div class="form-group col-md-6">
<label for="inputCity" class="col-form-label">City</label>
<input type="text" class="form-control" id="inputCity">
</div>
<div class="form-group col-md-4">
<label for="inputState" class="col-form-label">State</label>
<select id="inputState" class="form-control">Choose</select>
</div>
<div class="form-group col-md-2">
<label for="inputZip" class="col-form-label">Zip</label>
<input type="text" class="form-control" id="inputZip">
</div>
</div>
<div class="form-group">
<div class="form-check">
<label class="form-check-label">
<input class="form-check-input" type="checkbox"> Check me out
</label>
</div>
</div>
<button type="submit" class="btn btn-primary">Sign in</button>
</form>
</div>
{% endexample %}
Grid-based form layouts also support large and small inputs.
{% example html %}
<div class="container">
<form>
<div class="form-group row">
<label for="lgFormGroupInput" 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="lgFormGroupInput" placeholder="you@example.com">
</div>
</div>
<div class="form-group row">
<label for="smFormGroupInput" 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="smFormGroupInput" placeholder="you@example.com">
</div>
</div>
</form>
</div>
{% endexample %}
## Checkboxes and radios
Default checkboxes and radios are improved upon with the help of `.form-check`, **a single class for both input types that improves the layout and behavior of their HTML elements**. Checkboxes are for selecting one or several options in a list, while radios are for selecting one option from many.
@ -639,42 +255,376 @@ Should you have no text within the `<label>`, the input is positioned as you'd e
</div>
{% endexample %}
## Static controls
## Layout
If you want to have read-only fields in your form styled as plain text, use the `.form-control-static` class to remove the default form field styling and preserve the correct margin and padding.
Since Bootstrap applies `display: block` and `width: 100%` to almost all our form controls, forms will by default stack vertically. Additional classes can be used to vary this layout on a per-form basis.
### Form groups
The `.form-group` class is the easiest way to add some structure to forms. Its only purpose is to provide `margin-bottom` around a label and control pairing. As a bonus, since it's a class you can use it with `<fieldset>`s, `<div>`s, or nearly any other element.
{% example html %}
<form>
<div class="form-group row">
<label for="staticEmail" class="col-sm-2 col-form-label">Email</label>
<div class="col-sm-10">
<input type="text" readonly class="form-control-static" id="staticEmail" value="email@example.com">
</div>
<div class="form-group">
<label class="form-control-label" for="formGroupExampleInput">Example label</label>
<input type="text" class="form-control" id="formGroupExampleInput" placeholder="Example input">
</div>
<div class="form-group row">
<label for="inputPassword" class="col-sm-2 col-form-label">Password</label>
<div class="col-sm-10">
<input type="password" class="form-control" id="inputPassword" placeholder="Password">
<div class="form-group">
<label class="form-control-label" for="formGroupExampleInput2">Another label</label>
<input type="text" class="form-control" id="formGroupExampleInput2" placeholder="Another input">
</div>
</form>
{% endexample %}
### 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.
{% example html %}
<form>
<div class="row">
<div class="col">
<input type="text" class="form-control" placeholder="First name">
</div>
<div class="col">
<input type="text" class="form-control" placeholder="Last name">
</div>
</div>
</form>
{% endexample %}
#### Form row
You may also swap `.row` for `.form-row`, a variation of our standard grid row that overrides the default column gutters for tighter and more compact layouts.
{% example html %}
<form>
<div class="form-row">
<div class="col">
<input type="text" class="form-control" placeholder="First name">
</div>
<div class="col">
<input type="text" class="form-control" placeholder="Last name">
</div>
</div>
</form>
{% endexample %}
More complex layouts can also be created with the grid system.
{% example html %}
<form>
<div class="form-row">
<div class="form-group col-md-6">
<label for="inputEmail4" class="col-form-label">Email</label>
<input type="email" class="form-control" id="inputEmail4" placeholder="Email">
</div>
<div class="form-group col-md-6">
<label for="inputPassword4" class="col-form-label">Password</label>
<input type="password" class="form-control" id="inputPassword4" placeholder="Password">
</div>
</div>
<div class="form-group">
<label for="inputAddress" class="col-form-label">Address</label>
<input type="text" class="form-control" id="inputAddress" placeholder="1234 Main St">
</div>
<div class="form-group">
<label for="inputAddress2" class="col-form-label">Address 2</label>
<input type="text" class="form-control" id="inputAddress2" placeholder="Apartment, studio, or floor">
</div>
<div class="form-row">
<div class="form-group col-md-6">
<label for="inputCity" class="col-form-label">City</label>
<input type="text" class="form-control" id="inputCity">
</div>
<div class="form-group col-md-4">
<label for="inputState" class="col-form-label">State</label>
<select id="inputState" class="form-control">Choose</select>
</div>
<div class="form-group col-md-2">
<label for="inputZip" class="col-form-label">Zip</label>
<input type="text" class="form-control" id="inputZip">
</div>
</div>
<div class="form-group">
<div class="form-check">
<label class="form-check-label">
<input class="form-check-input" type="checkbox"> Check me out
</label>
</div>
</div>
<button type="submit" class="btn btn-primary">Sign in</button>
</form>
{% endexample %}
#### 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. For `<legend>` elements, you can use `.col-form-legend` to make them appear similar to regular `<label>` elements.
{% example html %}
<div class="container">
<form>
<div class="form-group row">
<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" placeholder="Email">
</div>
</div>
<div class="form-group row">
<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" placeholder="Password">
</div>
</div>
<fieldset class="form-group">
<div class="row">
<legend class="col-form-legend col-sm-2">Radios</legend>
<div class="col-sm-10">
<div class="form-check">
<label class="form-check-label">
<input class="form-check-input" type="radio" name="gridRadios" id="gridRadios1" value="option1" checked>
Option one is this and that&mdash;be sure to include why it's great
</label>
</div>
<div class="form-check">
<label class="form-check-label">
<input class="form-check-input" type="radio" name="gridRadios" id="gridRadios2" value="option2">
Option two can be something else and selecting it will deselect option one
</label>
</div>
<div class="form-check disabled">
<label class="form-check-label">
<input class="form-check-input" type="radio" name="gridRadios" id="gridRadios3" value="option3" disabled>
Option three is disabled
</label>
</div>
</div>
</div>
</fieldset>
<div class="form-group row">
<div class="col-sm-2">Checkbox</div>
<div class="col-sm-10">
<div class="form-check">
<label class="form-check-label">
<input class="form-check-input" type="checkbox"> Check me out
</label>
</div>
</div>
</div>
<div class="form-group row">
<div class="offset-sm-2 col-sm-10">
<button type="submit" class="btn btn-primary">Sign in</button>
</div>
</div>
</form>
</div>
{% endexample %}
#### Column sizing
As shown in the previous examples, our grid system allows you to place any number of `.col`s within a `.row` or `.form-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-7`.
{% example html %}
<form>
<div class="form-row">
<div class="col-7">
<input type="text" class="form-control" placeholder="City">
</div>
<div class="col">
<input type="text" class="form-control" placeholder="State">
</div>
<div class="col">
<input type="text" class="form-control" placeholder="Zip">
</div>
</div>
</form>
{% endexample html %}
#### 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.
{% example html %}
<form>
<div class="form-row align-items-center">
<div class="col-auto">
<label class="sr-only" for="inlineFormInput">Name</label>
<input type="text" class="form-control mb-2 mb-sm-0" id="inlineFormInput" placeholder="Jane Doe">
</div>
<div class="col-auto">
<label class="sr-only" for="inlineFormInputGroup">Username</label>
<div class="input-group mb-2 mb-sm-0">
<div class="input-group-addon">@</div>
<input type="text" class="form-control" id="inlineFormInputGroup" placeholder="Username">
</div>
</div>
<div class="col-auto">
<div class="form-check mb-2 mb-sm-0">
<label class="form-check-label">
<input class="form-check-input" type="checkbox"> Remember me
</label>
</div>
</div>
<div class="col-auto">
<button type="submit" class="btn btn-primary">Submit</button>
</div>
</div>
</form>
{% endexample %}
You can then remix that once again with size-specific column classes.
{% example html %}
<form>
<div class="form-row align-items-center">
<div class="col-sm-3">
<label class="sr-only" for="inlineFormInput">Name</label>
<input type="text" class="form-control mb-2 mb-sm-0" id="inlineFormInput" placeholder="Jane Doe">
</div>
<div class="col-sm-3">
<label class="sr-only" for="inlineFormInputGroup">Username</label>
<div class="input-group mb-2 mb-sm-0">
<div class="input-group-addon">@</div>
<input type="text" class="form-control" id="inlineFormInputGroup" placeholder="Username">
</div>
</div>
<div class="col-auto">
<div class="form-check mb-2 mb-sm-0">
<label class="form-check-label">
<input class="form-check-input" type="checkbox"> Remember me
</label>
</div>
</div>
<div class="col-auto">
<button type="submit" class="btn btn-primary">Submit</button>
</div>
</div>
</form>
{% endexample %}
And of course [custom form controls](#custom-forms) are supported.
{% example html %}
<form>
<div class="form-row align-items-center">
<div class="col-auto">
<label class="mr-sm-2" for="inlineFormCustomSelect">Preference</label>
<select class="custom-select mb-2 mr-sm-2 mb-sm-0" id="inlineFormCustomSelect">
<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">
<label class="custom-control custom-checkbox mb-2 mr-sm-2 mb-sm-0">
<input type="checkbox" class="custom-control-input">
<span class="custom-control-indicator"></span>
<span class="custom-control-description">Remember my preference</span>
</label>
</div>
<div class="col-auto">
<button type="submit" class="btn btn-primary">Submit</button>
</div>
</div>
</form>
{% endexample %}
### Inline forms
Use the `.form-inline` class to display a series of labels, form controls, and buttons on a single horizontal row. Form controls within inline forms vary slightly from their default states.
- Controls are `display: flex`, collapsing any HTML white space and allowing you to provide alignment control with [spacing]({{ site.baseurl }}/docs/{{ site.docs_version }}/utilities/spacing/) and [flexbox]({{ site.baseurl }}/docs/{{ site.docs_version }}/utilities/flexbox/) utilities.
- Controls and input groups receive `width: auto` to override the Bootstrap default `width: 100%`.
- Controls **only appear inline in viewports that are at least 576px wide** to account for narrow viewports on mobile devices.
You may need to manually address the width and alignment of individual form controls with [spacing utilities]({{ site.baseurl }}/docs/{{ site.docs_version }}/utilities/spacing/) (as shown below). Lastly, be sure to always include a `<label>` with each form control, even if you need to hide it from non-screenreader visitors with `.sr-only`.
{% example html %}
<form class="form-inline">
<label class="sr-only" for="inlineFormInput">Name</label>
<input type="text" class="form-control mb-2 mr-sm-2 mb-sm-0" id="inlineFormInput" placeholder="Jane Doe">
<label class="sr-only" for="inlineFormInputGroup">Username</label>
<div class="input-group mb-2 mr-sm-2 mb-sm-0">
<div class="input-group-addon">@</div>
<input type="text" class="form-control" id="inlineFormInputGroup" placeholder="Username">
</div>
<div class="form-check mb-2 mr-sm-2 mb-sm-0">
<label class="form-check-label">
<input class="form-check-input" type="checkbox"> Remember me
</label>
</div>
<button type="submit" class="btn btn-primary">Submit</button>
</form>
{% endexample %}
Custom form controls and selects are also supported.
{% example html %}
<form class="form-inline">
<label class="mr-sm-2" for="inlineFormCustomSelect">Preference</label>
<select class="custom-select mb-2 mr-sm-2 mb-sm-0" id="inlineFormCustomSelect">
<option selected>Choose...</option>
<option value="1">One</option>
<option value="2">Two</option>
<option value="3">Three</option>
</select>
<label class="custom-control custom-checkbox mb-2 mr-sm-2 mb-sm-0">
<input type="checkbox" class="custom-control-input">
<span class="custom-control-indicator"></span>
<span class="custom-control-description">Remember my preference</span>
</label>
<button type="submit" class="btn btn-primary">Submit</button>
</form>
{% endexample %}
{% callout warning %}
#### Alternatives to hidden labels
Assistive technologies such as screen readers will have trouble with your forms if you don't include a label for every input. For these inline forms, you can hide the labels using the `.sr-only` class. There are further alternative methods of providing a label for assistive technologies, such as the `aria-label`, `aria-labelledby` or `title` attribute. If none of these are present, assistive technologies may resort to using the `placeholder` attribute, if present, but note that use of `placeholder` as a replacement for other labelling methods is not advised.
{% endcallout %}
## Help text
Block-level help text in forms can be created using `.form-text` (previously known as `.help-block` in v3). Inline help text can be flexibly implemented using any inline HTML element and utility classes like `.text-muted`.
{% callout warning %}
##### Associating help text with form controls
Help text should be explicitly associated with the form control it relates to using the `aria-describedby` attribute. This will ensure that assistive technologies—such as screen readers—will announce this help text when the user focuses or enters the control.
{% endcallout %}
Help text below inputs can be styled with `.form-text`. This class includes `display: block` and adds some top margin for easy spacing from the inputs above.
{% example html %}
<label for="inputPassword5">Password</label>
<input type="password" id="inputPassword5" class="form-control" aria-describedby="passwordHelpBlock">
<small id="passwordHelpBlock" class="form-text text-muted">
Your password must be 8-20 characters long, contain letters and numbers, and must not contain spaces, special characters, or emoji.
</small>
{% endexample %}
Inline text can use any typical inline HTML element (be it a `<small>`, `<span>`, or something else) with nothing more than a utility class.
{% example html %}
<form class="form-inline">
<div class="form-group">
<label for="staticEmail2" class="sr-only">Email</label>
<input type="text" readonly class="form-control-static" id="staticEmail2" value="email@example.com">
<label for="inputPassword6">Password</label>
<input type="password" id="inputPassword6" class="form-control mx-sm-3" aria-describedby="passwordHelpInline">
<small id="passwordHelpInline" class="text-muted">
Must be 8-20 characters long.
</small>
</div>
<div class="form-group mx-sm-3">
<label for="inputPassword2" class="sr-only">Password</label>
<input type="password" class="form-control" id="inputPassword2" placeholder="Password">
</div>
<button type="submit" class="btn btn-primary">Confirm identity</button>
</form>
{% endexample %}
## Disabled states
## Disabled forms
Add the `disabled` boolean attribute on an input to prevent user interactions and make it appear lighter.
@ -719,92 +669,6 @@ By default, browsers will treat all native form controls (`<input>`, `<select>`
While Bootstrap will apply these styles in all browsers, Internet Explorer 11 and below don't fully support the `disabled` attribute on a `<fieldset>`. Use custom JavaScript to disable the fieldset in these browsers.
{% endcallout %}
## Readonly inputs
Add the `readonly` boolean attribute on an input to prevent modification of the input's value. Read-only inputs appear lighter (just like disabled inputs), but retain the standard cursor.
{% example html %}
<input class="form-control" type="text" placeholder="Readonly input here…" readonly>
{% endexample %}
## Control sizing
Set heights using classes like `.form-control-lg`, and set widths using grid column classes like `.col-lg-*`.
{% example html %}
<input class="form-control form-control-lg" type="text" placeholder=".form-control-lg">
<input class="form-control" type="text" placeholder="Default input">
<input class="form-control form-control-sm" type="text" placeholder=".form-control-sm">
{% endexample %}
{% example html %}
<select class="form-control form-control-lg">
<option>Large select</option>
</select>
<select class="form-control">
<option>Default select</option>
</select>
<select class="form-control form-control-sm">
<option>Small select</option>
</select>
{% endexample %}
## Column sizing
Wrap inputs in grid columns, or any custom parent element, to easily enforce desired widths.
{% example html %}
<div class="row">
<div class="col-2">
<input type="text" class="form-control" placeholder=".col-2">
</div>
<div class="col-3">
<input type="text" class="form-control" placeholder=".col-3">
</div>
<div class="col-4">
<input type="text" class="form-control" placeholder=".col-4">
</div>
</div>
{% endexample %}
## Help text
Block-level help text in forms can be created using `.form-text` (previously known as `.help-block` in v3). Inline help text can be flexibly implemented using any inline HTML element and utility classes like `.text-muted`.
{% callout warning %}
#### Associating help text with form controls
Help text should be explicitly associated with the form control it relates to using the `aria-describedby` attribute. This will ensure that assistive technologies – such as screen readers – will announce this help text when the user focuses or enters the control.
{% endcallout %}
### Block level
Block help text—for below inputs or for longer lines of help text—can be easily achieved with `.form-text`. This class includes `display: block` and adds some top margin for easy spacing from the inputs above.
{% example html %}
<label for="inputPassword5">Password</label>
<input type="password" id="inputPassword5" class="form-control" aria-describedby="passwordHelpBlock">
<p id="passwordHelpBlock" class="form-text text-muted">
Your password must be 8-20 characters long, contain letters and numbers, and must not contain spaces, special characters, or emoji.
</p>
{% endexample %}
### Inline
Inline text can use any typical inline HTML element (be it a `<small>`, `<span>`, or something else).
{% example html %}
<form class="form-inline">
<div class="form-group">
<label for="inputPassword6">Password</label>
<input type="password" id="inputPassword6" class="form-control mx-sm-3" aria-describedby="passwordHelpInline">
<small id="passwordHelpInline" class="text-muted">
Must be 8-20 characters long.
</small>
</div>
</form>
{% endexample %}
## Validation
Provide valuable, actionable feedback to your users with HTML5 form validation–[available in all our supported browsers](http://caniuse.com/#feat=form-validation). Choose from the browser default validation feedback, or implement custom messages with our built-in classes and starter JavaScript.