Bootstrap/docs/_includes/components/input-groups.html

<div class="bs-docs-section">
  <h1 id="input-groups" class="page-header">Input groups</h1>

  <p class="lead">Extend form controls by adding text or buttons before, after, or on both sides of any text-based input. Use <code>.input-group</code> with an <code>.input-group-addon</code> to prepend or append elements to a single <code>.form-control</code>.</p>

  <div class="bs-callout bs-callout-danger">
    <h4>Cross-browser compatibility</h4>
    <p>Avoid using <code>&lt;select&gt;</code> elements here as they cannot be fully styled in WebKit browsers.</p>
  </div>
  <div class="bs-callout bs-callout-warning">
    <h4>Tooltips &amp; popovers in input groups require special setting</h4>
    <p>When using tooltips or popovers on elements within an <code>.input-group</code>, you'll have to specify the option <code>container: 'body'</code> to avoid unwanted side effects (such as the element growing wider and/or losing its rounded corners when the tooltip or popover is triggered).</p>
  </div>
  <div class="bs-callout bs-callout-warning">
    <h4>Don't mix with other components</h4>
    <p>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.</p>
  </div>


  <h2 id="input-groups-basic">Basic example</h2>
  <p>Place one add-on or button on either side of an input. You may also place one on both sides of an input.</p>
  <p><strong class="text-danger">We do not support multiple add-ons on a single side.</strong></p>
  <p><strong class="text-danger">We do not support multiple form-controls in a single input group.</strong></p>
  <form class="bs-example bs-example-form" role="form">
    <div class="input-group">
      <span class="input-group-addon">@</span>
      <input type="text" class="form-control" placeholder="Username">
    </div>
    <br>
    <div class="input-group">
      <input type="text" class="form-control">
      <span class="input-group-addon">.00</span>
    </div>
    <br>
    <div class="input-group">
      <span class="input-group-addon">$</span>
      <input type="text" class="form-control">
      <span class="input-group-addon">.00</span>
    </div>
  </form>
{% highlight html %}
<div class="input-group">
  <span class="input-group-addon">@</span>
  <input type="text" class="form-control" placeholder="Username">
</div>

<div class="input-group">
  <input type="text" class="form-control">
  <span class="input-group-addon">.00</span>
</div>

<div class="input-group">
  <span class="input-group-addon">$</span>
  <input type="text" class="form-control">
  <span class="input-group-addon">.00</span>
</div>
{% endhighlight %}

  <h2 id="input-groups-sizing">Sizing</h2>
  <p>Add the relative form sizing classes to the <code>.input-group</code> itself and contents within will automatically resize—no need for repeating the form control size classes on each element.</p>
  <form class="bs-example bs-example-form" role="form">
    <div class="input-group input-group-lg">
      <span class="input-group-addon">@</span>
      <input type="text" class="form-control" placeholder="Username">
    </div>
    <br>
    <div class="input-group">
      <span class="input-group-addon">@</span>
      <input type="text" class="form-control" placeholder="Username">
    </div>
    <br>
    <div class="input-group input-group-sm">
      <span class="input-group-addon">@</span>
      <input type="text" class="form-control" placeholder="Username">
    </div>
  </form>
{% highlight html %}
<div class="input-group input-group-lg">
  <span class="input-group-addon">@</span>
  <input type="text" class="form-control" placeholder="Username">
</div>

<div class="input-group">
  <span class="input-group-addon">@</span>
  <input type="text" class="form-control" placeholder="Username">
</div>

<div class="input-group input-group-sm">
  <span class="input-group-addon">@</span>
  <input type="text" class="form-control" placeholder="Username">
</div>
{% endhighlight %}


  <h2 id="input-groups-checkboxes-radios">Checkboxes and radio addons</h2>
  <p>Place any checkbox or radio option within an input group's addon instead of text.</p>
  <form class="bs-example bs-example-form">
    <div class="row">
      <div class="col-lg-6">
        <div class="input-group">
          <span class="input-group-addon">
            <input type="checkbox">
          </span>
          <input type="text" class="form-control">
        </div><!-- /input-group -->
      </div><!-- /.col-lg-6 -->
      <div class="col-lg-6">
        <div class="input-group">
          <span class="input-group-addon">
            <input type="radio">
          </span>
          <input type="text" class="form-control">
        </div><!-- /input-group -->
      </div><!-- /.col-lg-6 -->
    </div><!-- /.row -->
  </form>
{% highlight html %}
<div class="row">
  <div class="col-lg-6">
    <div class="input-group">
      <span class="input-group-addon">
        <input type="checkbox">
      </span>
      <input type="text" class="form-control">
    </div><!-- /input-group -->
  </div><!-- /.col-lg-6 -->
  <div class="col-lg-6">
    <div class="input-group">
      <span class="input-group-addon">
        <input type="radio">
      </span>
      <input type="text" class="form-control">
    </div><!-- /input-group -->
  </div><!-- /.col-lg-6 -->
</div><!-- /.row -->
{% endhighlight %}


  <h2 id="input-groups-buttons">Button addons</h2>
  <p>Buttons in input groups are a bit different and require one extra level of nesting. Instead of <code>.input-group-addon</code>, you'll need to use <code>.input-group-btn</code> to wrap the buttons. This is required due to default browser styles that cannot be overridden.</p>
  <form class="bs-example bs-example-form">
    <div class="row">
      <div class="col-lg-6">
        <div class="input-group">
          <span class="input-group-btn">
            <button class="btn btn-default" type="button">Go!</button>
          </span>
          <input type="text" class="form-control">
        </div><!-- /input-group -->
      </div><!-- /.col-lg-6 -->
      <div class="col-lg-6">
        <div class="input-group">
          <input type="text" class="form-control">
          <span class="input-group-btn">
            <button class="btn btn-default" type="button">Go!</button>
          </span>
        </div><!-- /input-group -->
      </div><!-- /.col-lg-6 -->
    </div><!-- /.row -->
  </form>
{% highlight html %}
<div class="row">
  <div class="col-lg-6">
    <div class="input-group">
      <span class="input-group-btn">
        <button class="btn btn-default" type="button">Go!</button>
      </span>
      <input type="text" class="form-control">
    </div><!-- /input-group -->
  </div><!-- /.col-lg-6 -->
  <div class="col-lg-6">
    <div class="input-group">
      <input type="text" class="form-control">
      <span class="input-group-btn">
        <button class="btn btn-default" type="button">Go!</button>
      </span>
    </div><!-- /input-group -->
  </div><!-- /.col-lg-6 -->
</div><!-- /.row -->
{% endhighlight %}

  <h2 id="input-groups-buttons-dropdowns">Buttons with dropdowns</h2>
  <p></p>
  <form class="bs-example bs-example-form" role="form">
    <div class="row">
      <div class="col-lg-6">
        <div class="input-group">
          <div class="input-group-btn">
            <button type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown">Action <span class="caret"></span></button>
            <ul class="dropdown-menu" role="menu">
              <li><a href="#">Action</a></li>
              <li><a href="#">Another action</a></li>
              <li><a href="#">Something else here</a></li>
              <li class="divider"></li>
              <li><a href="#">Separated link</a></li>
            </ul>
          </div><!-- /btn-group -->
          <input type="text" class="form-control">
        </div><!-- /input-group -->
      </div><!-- /.col-lg-6 -->
      <div class="col-lg-6">
        <div class="input-group">
          <input type="text" class="form-control">
          <div class="input-group-btn">
            <button type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown">Action <span class="caret"></span></button>
            <ul class="dropdown-menu dropdown-menu-right" role="menu">
              <li><a href="#">Action</a></li>
              <li><a href="#">Another action</a></li>
              <li><a href="#">Something else here</a></li>
              <li class="divider"></li>
              <li><a href="#">Separated link</a></li>
            </ul>
          </div><!-- /btn-group -->
        </div><!-- /input-group -->
      </div><!-- /.col-lg-6 -->
    </div><!-- /.row -->
  </form>
{% highlight html %}
<div class="row">
  <div class="col-lg-6">
    <div class="input-group">
      <div class="input-group-btn">
        <button type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown">Action <span class="caret"></span></button>
        <ul class="dropdown-menu">
          <li><a href="#">Action</a></li>
          <li><a href="#">Another action</a></li>
          <li><a href="#">Something else here</a></li>
          <li class="divider"></li>
          <li><a href="#">Separated link</a></li>
        </ul>
      </div><!-- /btn-group -->
      <input type="text" class="form-control">
    </div><!-- /input-group -->
  </div><!-- /.col-lg-6 -->
  <div class="col-lg-6">
    <div class="input-group">
      <input type="text" class="form-control">
      <div class="input-group-btn">
        <button type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown">Action <span class="caret"></span></button>
        <ul class="dropdown-menu dropdown-menu-right">
          <li><a href="#">Action</a></li>
          <li><a href="#">Another action</a></li>
          <li><a href="#">Something else here</a></li>
          <li class="divider"></li>
          <li><a href="#">Separated link</a></li>
        </ul>
      </div><!-- /btn-group -->
    </div><!-- /input-group -->
  </div><!-- /.col-lg-6 -->
</div><!-- /.row -->
{% endhighlight %}

  <h2 id="input-groups-buttons-segmented">Segmented buttons</h2>
  <form class="bs-example bs-example-form" role="form">
    <div class="row">
      <div class="col-lg-6">
        <div class="input-group">
          <div class="input-group-btn">
            <button type="button" class="btn btn-default" tabindex="-1">Action</button>
            <button type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown" tabindex="-1">
              <span class="caret"></span>
              <span class="sr-only">Toggle Dropdown</span>
            </button>
            <ul class="dropdown-menu" role="menu">
              <li><a href="#">Action</a></li>
              <li><a href="#">Another action</a></li>
              <li><a href="#">Something else here</a></li>
              <li class="divider"></li>
              <li><a href="#">Separated link</a></li>
            </ul>
          </div>
          <input type="text" class="form-control">
        </div><!-- /.input-group -->
      </div><!-- /.col-lg-6 -->
      <div class="col-lg-6">
        <div class="input-group">
          <input type="text" class="form-control">
          <div class="input-group-btn">
            <button type="button" class="btn btn-default" tabindex="-1">Action</button>
            <button type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown" tabindex="-1">
              <span class="caret"></span>
              <span class="sr-only">Toggle Dropdown</span>
            </button>
            <ul class="dropdown-menu dropdown-menu-right" role="menu">
              <li><a href="#">Action</a></li>
              <li><a href="#">Another action</a></li>
              <li><a href="#">Something else here</a></li>
              <li class="divider"></li>
              <li><a href="#">Separated link</a></li>
            </ul>
          </div>
        </div><!-- /.input-group -->
      </div><!-- /.col-lg-6 -->
    </div><!-- /.row -->
  </form>
{% highlight html %}
<div class="input-group">
  <div class="input-group-btn">
    <!-- Button and dropdown menu -->
  </div>
  <input type="text" class="form-control">
</div>

<div class="input-group">
  <input type="text" class="form-control">
  <div class="input-group-btn">
    <!-- Button and dropdown menu -->
  </div>
</div>
{% endhighlight %}
</div>