Bootstrap provides several form control styles, layout options, and custom components for creating a wide variety of forms.
Here are examples of .form-control
applied to each textual HTML5 <input>
type
.
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.
Use the .form-inline
class to to display a series of labels, form controls, and buttons on a single horizontal row.
For more structured form layouts, you can utilize Bootstrap’s predefined grid classes or mixins. Add the .row
class to form groups and use the .col-*
classes to specify the width of your labels and controls.
Checkboxes are for selecting one or several options in a list, while radios are for selecting one option from many.
When you need to place plain text next to a form label within a form, use the .form-control-static
class on a <p>
.
Add the disabled
boolean attribute on an input to prevent user interactions. Disabled inputs appear lighter and add a not-allowed
cursor.
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.
Set heights using classes like .form-control-lg
, and set widths using grid column classes like .col-lg-*
.
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
.
Your password must be 8-20 characters long, contain letters and numbers, and must not contain spaces, special characters, or emoji.
Bootstrap includes validation styles for danger, warning, and success states on form controls. To use, add .has-warning
, .has-danger
, or .has-success
to the parent element. Any .form-control-label
, .form-control
, and .text-help
within that element will receive the validation styles.
For even more customization and cross browser consistency, use our completely custom form elements to replace the browser defaults. They’re built on top of semantic and accessible markup, so they’re solid replacements for any default form control.