Individual form controls automatically receive some global styling. All textual <input>
, <textarea>
, and <select>
elements with .form-control
are set to width: 100%;
by default. Wrap labels and controls in .form-group
for optimum spacing.
Do not mix form groups directly with input groups. Instead, nest the input group inside of the form group.
Add .form-inline
to your <form>
for left-aligned and inline-block controls. This only applies to forms within viewports that are at least 768px wide.
Inputs, selects, and textareas are 100% wide by default in Bootstrap. To use the inline form, you'll have to set a width on the form controls used within.
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.
Use Bootstrap's predefined grid classes to align labels and groups of form controls in a horizontal layout by adding .form-horizontal
to the form. Doing so changes .form-group
s to behave as grid rows, so no need for .row
.
Examples of standard form controls supported in an example form layout.
Most common form control, text-based input fields. Includes support for all HTML5 types: text
, password
, datetime
, datetime-local
, date
, month
, time
, week
, number
, email
, url
, search
, tel
, and color
.
Inputs will only be fully styled if their type
is properly declared.
To add integrated text or buttons before and/or after any text-based <input>
, check out the input group component.
Form control which supports multiple lines of text. Change rows
attribute as necessary.
Checkboxes are for selecting one or several options in a list, while radios are for selecting one option from many.
A checkbox or radio with the disabled
attribute will be styled appropriately. To have the <label>
for the checkbox or radio also display a "not-allowed" cursor when the user hovers over the label, add the .disabled
class to your .radio
, .radio-inline
, .checkbox
, .checkbox-inline
, or <fieldset>
.
Use the .checkbox-inline
or .radio-inline
classes on a series of checkboxes or radios for controls that appear on the same line.
Use the default option, or add multiple
to show multiple options at once.
When you need to place plain text next to a form label within a horizontal form, use the .form-control-static
class on a <p>
.
We remove the default outline
styles on some form controls and apply a box-shadow
in its place for :focus
.
:focus
stateThe above example input uses custom styles in our documentation to demonstrate the :focus
state on a .form-control
.
Add the disabled
boolean attribute on an input to prevent user input and trigger a slightly different look.
Add the disabled
attribute to a <fieldset>
to disable all the controls within the <fieldset>
at once.
<a>
Our styles use pointer-events: none
to try to disable the link functionality of <a class="btn btn-*">
buttons in this case, but that CSS property is not yet standardized and isn't fully supported in Opera 18 and below, or in Internet Explorer 11. So to be safe, use custom JavaScript to disable such links.
While Bootstrap will apply these styles in all browsers, Internet Explorer 9 and below don't actually support the disabled
attribute on a <fieldset>
. Use custom JavaScript to disable the fieldset in these browsers.
Add the readonly
boolean attribute on an input to prevent user input and style the input as disabled.
Bootstrap includes validation styles for error, warning, and success states on form controls. To use, add .has-warning
, .has-error
, or .has-success
to the parent element. Any .control-label
, .form-control
, and .help-block
within that element will receive the validation styles.
You can also add optional feedback icons with the addition of .has-feedback
and the right icon.
Manual positioning of feedback icons is required for inputs without a label and for input groups with an add-on on the right. You are strongly encouraged to provide labels for all inputs for accessibility reasons. If you wish to prevent labels from being displayed, hide them with the sr-only
class. If you must do without labels, adjust the top
value of the feedback icon. For input groups, adjust the right
value to an appropriate pixel value depending on the width of your addon.
.sr-only
labelsFor form controls with no visible label, add the .sr-only
class on the label. Bootstrap will automatically adjust the position of the icon once it's been added.
Set heights using classes like .input-lg
, and set widths using grid column classes like .col-lg-*
.
Create taller or shorter form controls that match button sizes.
Quickly size labels and form controls within .form-horizontal
by adding .form-group-lg
or .form-group-sm
.
Wrap inputs in grid columns, or any custom parent element, to easily enforce desired widths.
Block level help text for form controls.