mdb-ui-kit/docs/4.0/components/input-group.md
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---
layout: docs
title: Input group
description: Easily extend form controls by adding text, buttons, or button groups on either side of textual inputs.
group: components
toc: true
---
## Basic example
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 form-controls in a single input group** and `<label>`s must come outside the input group.
{% example html %}
<div class="input-group">
<span class="input-group-addon" id="basic-addon1">@</span>
<input type="text" class="form-control" placeholder="Username" aria-label="Username" aria-describedby="basic-addon1">
</div>
<br>
<div class="input-group">
<input type="text" class="form-control" placeholder="Recipient's username" aria-label="Recipient's username" aria-describedby="basic-addon2">
<span class="input-group-addon" id="basic-addon2">@example.com</span>
</div>
<br>
<label for="basic-url">Your vanity URL</label>
<div class="input-group">
<span class="input-group-addon" id="basic-addon3">https://example.com/users/</span>
<input type="text" class="form-control" id="basic-url" aria-describedby="basic-addon3">
</div>
<br>
<div class="input-group">
<span class="input-group-addon">$</span>
<input type="text" class="form-control" aria-label="Amount (to the nearest dollar)">
<span class="input-group-addon">.00</span>
</div>
<br>
<div class="input-group">
<span class="input-group-addon">$</span>
<span class="input-group-addon">0.00</span>
<input type="text" class="form-control" aria-label="Amount (to the nearest dollar)">
</div>
{% endexample %}
## Sizing
Add the relative form sizing classes to the `.input-group` itself and contents within will automatically resize—no need for repeating the form control size classes on each element.
{% example html %}
<div class="input-group input-group-lg">
<span class="input-group-addon" id="sizing-addon1">@</span>
<input type="text" class="form-control" placeholder="Username" aria-label="Username" aria-describedby="sizing-addon1">
</div>
<br>
<div class="input-group input-group-sm">
<span class="input-group-addon" id="sizing-addon2">@</span>
<input type="text" class="form-control" placeholder="Username" aria-label="Username" aria-describedby="sizing-addon2">
</div>
{% endexample %}
## Checkboxes and radio addons
Place any checkbox or radio option within an input group's addon instead of text.
{% example html %}
<div class="row">
<div class="col-lg-6">
<div class="input-group">
<span class="input-group-addon">
<input type="checkbox" aria-label="Checkbox for following text input">
</span>
<input type="text" class="form-control" aria-label="Text input with checkbox">
</div>
</div>
<div class="col-lg-6">
<div class="input-group">
<span class="input-group-addon">
<input type="radio" aria-label="Radio button for following text input">
</span>
<input type="text" class="form-control" aria-label="Text input with radio button">
</div>
</div>
</div>
{% endexample %}
## Multiple addons
Multiple add-ons are supported and can be mixed with checkbox and radio input versions.
{% example html %}
<div class="row">
<div class="col-lg-6">
<div class="input-group">
<span class="input-group-addon">
<input type="checkbox" aria-label="Checkbox for following text input">
</span>
<span class="input-group-addon">$</span>
<input type="text" class="form-control" aria-label="Text input with checkbox">
</div>
</div>
<div class="col-lg-6">
<div class="input-group">
<span class="input-group-addon">$</span>
<span class="input-group-addon">0.00</span>
<input type="text" class="form-control" aria-label="Text input with radio button">
</div>
</div>
</div>
{% endexample %}
## Button addons
Buttons in input groups must wrapped in a `.input-group-btn` for proper alignment and sizing. This is required due to default browser styles that cannot be overridden.
{% example html %}
<div class="row">
<div class="col-lg-6">
<div class="input-group">
<span class="input-group-btn">
<button class="btn btn-secondary" type="button">Go!</button>
</span>
<input type="text" class="form-control" placeholder="Search for..." aria-label="Search for...">
</div>
</div>
<div class="col-lg-6">
<div class="input-group">
<input type="text" class="form-control" placeholder="Search for..." aria-label="Search for...">
<span class="input-group-btn">
<button class="btn btn-secondary" type="button">Go!</button>
</span>
</div>
</div>
</div>
<br>
<div class="row">
<div class="col-lg-offset-3 col-lg-6">
<div class="input-group">
<span class="input-group-btn">
<button class="btn btn-secondary" type="button">Hate it</button>
</span>
<input type="text" class="form-control" placeholder="Product name" aria-label="Product name">
<span class="input-group-btn">
<button class="btn btn-secondary" type="button">Love it</button>
</span>
</div>
</div>
</div>
{% endexample %}
## Buttons with dropdowns
{% example html %}
<div class="row">
<div class="col-lg-6">
<div class="input-group">
<div class="input-group-btn">
<button type="button" class="btn btn-secondary dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
Action
</button>
<div class="dropdown-menu">
<a class="dropdown-item" href="#">Action</a>
<a class="dropdown-item" href="#">Another action</a>
<a class="dropdown-item" href="#">Something else here</a>
<div role="separator" class="dropdown-divider"></div>
<a class="dropdown-item" href="#">Separated link</a>
</div>
</div>
<input type="text" class="form-control" aria-label="Text input with dropdown button">
</div>
</div>
<div class="col-lg-6">
<div class="input-group">
<input type="text" class="form-control" aria-label="Text input with dropdown button">
<div class="input-group-btn">
<button type="button" class="btn btn-secondary dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
Action
</button>
<div class="dropdown-menu dropdown-menu-right">
<a class="dropdown-item" href="#">Action</a>
<a class="dropdown-item" href="#">Another action</a>
<a class="dropdown-item" href="#">Something else here</a>
<div role="separator" class="dropdown-divider"></div>
<a class="dropdown-item" href="#">Separated link</a>
</div>
</div>
</div>
</div>
</div>
{% endexample %}
## Segmented buttons
{% example html %}
<div class="row">
<div class="col-lg-6">
<div class="input-group">
<div class="input-group-btn">
<button type="button" class="btn btn-secondary">Action</button>
<button type="button" class="btn btn-secondary dropdown-toggle dropdown-toggle-split" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
<span class="sr-only">Toggle Dropdown</span>
</button>
<div class="dropdown-menu">
<a class="dropdown-item" href="#">Action</a>
<a class="dropdown-item" href="#">Another action</a>
<a class="dropdown-item" href="#">Something else here</a>
<div role="separator" class="dropdown-divider"></div>
<a class="dropdown-item" href="#">Separated link</a>
</div>
</div>
<input type="text" class="form-control" aria-label="Text input with segmented button dropdown">
</div>
</div>
<div class="col-lg-6">
<div class="input-group">
<input type="text" class="form-control" aria-label="Text input with segmented button dropdown">
<div class="input-group-btn">
<button type="button" class="btn btn-secondary">Action</button>
<button type="button" class="btn btn-secondary dropdown-toggle dropdown-toggle-split" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
<span class="sr-only">Toggle Dropdown</span>
</button>
<div class="dropdown-menu dropdown-menu-right">
<a class="dropdown-item" href="#">Action</a>
<a class="dropdown-item" href="#">Another action</a>
<a class="dropdown-item" href="#">Something else here</a>
<div role="separator" class="dropdown-divider"></div>
<a class="dropdown-item" href="#">Separated link</a>
</div>
</div>
</div>
</div>
</div>
{% endexample %}
## Accessibility
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 (`<label>` elements hidden using the `.sr-only` class, or use of the `aria-label` and `aria-labelledby` attributes, possibly in combination with `aria-describedby`) 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.