# Button dropdowns

Use any button to trigger a dropdown menu by placing it within a `.btn-group` and providing the proper menu markup.

#### Plugin dependency

Button dropdowns require the dropdown plugin to be included in your version of Bootstrap.

## Single button dropdowns

Turn a button into a dropdown toggle with some basic markup changes.

{% highlight html %}
{% endhighlight %}

## Split button dropdowns

Similarly, create split button dropdowns with the same markup changes, only with a separate button.

{% highlight html %}
{% endhighlight %}

## Sizing

Button dropdowns work with buttons of all sizes.

{% highlight html %}
{% endhighlight %}

## Dropup variation

Trigger dropdown menus above elements by adding `.dropup` to the parent.

{% highlight html %}
{% endhighlight %}