Extend form controls by adding text or buttons before, after, or on both sides of any text-based <input>
. Use .input-group
with an .input-group-addon
or .input-group-btn
to prepend or append elements to a single .form-control
.
<input>
s onlyAvoid using <select>
elements here as they cannot be fully styled in WebKit browsers.
Avoid using <textarea>
elements here as their rows
attribute will not be respected in some cases.
When using tooltips or popovers on elements within an .input-group
, you'll have to specify the option container: 'body'
to avoid unwanted side effects (such as the element growing wider and/or losing its rounded corners when the tooltip or popover is triggered).
Do not mix form groups or grid column classes directly with input groups. Instead, nest the input group inside of the form group or grid-related element.
Screen readers will have trouble with your forms if you don't include a label for every input. For these input groups, ensure that any additional label or functionality is conveyed to assistive technologies.
The exact technique to be used (visible <label>
elements, <label>
elements hidden using the .sr-only
class, or use of the aria-label
, aria-labelledby
, aria-describedby
, title
or placeholder
attribute) and what additional information will need to be conveyed will vary depending on the exact type of interface widget you're implementing. The examples in this section provide a few suggested, case-specific approaches.
Place one add-on or button on either side of an input. You may also place one on both sides of an input.
We do not support multiple add-ons (.input-group-addon
or .input-group-btn
) on a single side.
We do not support multiple form-controls in a single input group.
{% highlight html %}Add the relative form sizing classes to the .input-group
itself and contents within will automatically resizeāno need for repeating the form control size classes on each element.
Place any checkbox or radio option within an input group's addon instead of text.
{% highlight html %}Buttons in input groups are a bit different and require one extra level of nesting. Instead of .input-group-addon
, you'll need to use .input-group-btn
to wrap the buttons. This is required due to default browser styles that cannot be overridden.
While you can only have one add-on per side, you can have multiple buttons inside a single .input-group-btn
.