332 lines
13 KiB
Markdown
332 lines
13 KiB
Markdown
---
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layout: page
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title: Button dropdown
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group: components
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---
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Use any button to trigger a dropdown menu by placing it within a `.btn-group` and providing the proper dropdown menu markup.
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{% callout danger %}
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#### Plugin dependency
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Button dropdowns require the [dropdown plugin](../javascript/#dropdowns) to be included in your version of Bootstrap.
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{% endcallout %}
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## Contents
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* Will be replaced with the ToC, excluding the "Contents" header
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{:toc}
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### Single button dropdowns
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Turn a button into a dropdown toggle with some basic markup changes.
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<div class="bd-example">
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<div class="btn-group">
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<button type="button" class="btn btn-secondary dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Default</button>
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<ul class="dropdown-menu">
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<li><a href="#">Action</a></li>
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<li><a href="#">Another action</a></li>
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<li><a href="#">Something else here</a></li>
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<li role="separator" class="divider"></li>
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<li><a href="#">Separated link</a></li>
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</ul>
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</div><!-- /btn-group -->
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<div class="btn-group">
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<button type="button" class="btn btn-primary dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Primary</button>
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<ul class="dropdown-menu">
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<li><a href="#">Action</a></li>
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<li><a href="#">Another action</a></li>
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<li><a href="#">Something else here</a></li>
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<li role="separator" class="divider"></li>
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<li><a href="#">Separated link</a></li>
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</ul>
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</div><!-- /btn-group -->
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<div class="btn-group">
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<button type="button" class="btn btn-success dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Success</button>
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<ul class="dropdown-menu">
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<li><a href="#">Action</a></li>
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<li><a href="#">Another action</a></li>
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<li><a href="#">Something else here</a></li>
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<li role="separator" class="divider"></li>
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<li><a href="#">Separated link</a></li>
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</ul>
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</div><!-- /btn-group -->
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<div class="btn-group">
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<button type="button" class="btn btn-info dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Info</button>
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<ul class="dropdown-menu">
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<li><a href="#">Action</a></li>
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<li><a href="#">Another action</a></li>
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<li><a href="#">Something else here</a></li>
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<li role="separator" class="divider"></li>
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<li><a href="#">Separated link</a></li>
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</ul>
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</div><!-- /btn-group -->
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<div class="btn-group">
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<button type="button" class="btn btn-warning dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Warning</button>
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<ul class="dropdown-menu">
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<li><a href="#">Action</a></li>
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<li><a href="#">Another action</a></li>
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<li><a href="#">Something else here</a></li>
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<li role="separator" class="divider"></li>
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<li><a href="#">Separated link</a></li>
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</ul>
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</div><!-- /btn-group -->
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<div class="btn-group">
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<button type="button" class="btn btn-danger dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Danger</button>
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<ul class="dropdown-menu">
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<li><a href="#">Action</a></li>
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<li><a href="#">Another action</a></li>
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<li><a href="#">Something else here</a></li>
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<li role="separator" class="divider"></li>
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<li><a href="#">Separated link</a></li>
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</ul>
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</div><!-- /btn-group -->
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</div>
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{% highlight html %}
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<!-- Single button -->
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<div class="btn-group">
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<button type="button" class="btn btn-secondary dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
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Action
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</button>
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<ul class="dropdown-menu">
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<li><a href="#">Action</a></li>
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<li><a href="#">Another action</a></li>
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<li><a href="#">Something else here</a></li>
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<li role="separator" class="divider"></li>
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<li><a href="#">Separated link</a></li>
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</ul>
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</div>
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{% endhighlight %}
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### Split button dropdowns
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Similarly, create split button dropdowns with the same markup changes, only with a separate button.
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<div class="bd-example">
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<div class="btn-group">
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<button type="button" class="btn btn-secondary">Default</button>
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<button type="button" class="btn btn-secondary dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
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<span class="sr-only">Toggle Dropdown</span>
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</button>
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<ul class="dropdown-menu">
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<li><a href="#">Action</a></li>
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<li><a href="#">Another action</a></li>
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<li><a href="#">Something else here</a></li>
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<li role="separator" class="divider"></li>
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<li><a href="#">Separated link</a></li>
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</ul>
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</div><!-- /btn-group -->
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<div class="btn-group">
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<button type="button" class="btn btn-primary">Primary</button>
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<button type="button" class="btn btn-primary dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
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<span class="sr-only">Toggle Dropdown</span>
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</button>
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<ul class="dropdown-menu">
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<li><a href="#">Action</a></li>
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<li><a href="#">Another action</a></li>
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<li><a href="#">Something else here</a></li>
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<li role="separator" class="divider"></li>
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<li><a href="#">Separated link</a></li>
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</ul>
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</div><!-- /btn-group -->
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<div class="btn-group">
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<button type="button" class="btn btn-success">Success</button>
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<button type="button" class="btn btn-success dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
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<span class="sr-only">Toggle Dropdown</span>
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</button>
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<ul class="dropdown-menu">
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<li><a href="#">Action</a></li>
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<li><a href="#">Another action</a></li>
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<li><a href="#">Something else here</a></li>
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<li role="separator" class="divider"></li>
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<li><a href="#">Separated link</a></li>
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</ul>
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</div><!-- /btn-group -->
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<div class="btn-group">
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<button type="button" class="btn btn-info">Info</button>
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<button type="button" class="btn btn-info dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
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<span class="sr-only">Toggle Dropdown</span>
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</button>
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<ul class="dropdown-menu">
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<li><a href="#">Action</a></li>
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<li><a href="#">Another action</a></li>
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<li><a href="#">Something else here</a></li>
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<li role="separator" class="divider"></li>
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<li><a href="#">Separated link</a></li>
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</ul>
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</div><!-- /btn-group -->
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<div class="btn-group">
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<button type="button" class="btn btn-warning">Warning</button>
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<button type="button" class="btn btn-warning dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
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<span class="sr-only">Toggle Dropdown</span>
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</button>
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<ul class="dropdown-menu">
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<li><a href="#">Action</a></li>
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<li><a href="#">Another action</a></li>
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<li><a href="#">Something else here</a></li>
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<li role="separator" class="divider"></li>
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<li><a href="#">Separated link</a></li>
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</ul>
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</div><!-- /btn-group -->
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<div class="btn-group">
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<button type="button" class="btn btn-danger">Danger</button>
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<button type="button" class="btn btn-danger dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
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<span class="sr-only">Toggle Dropdown</span>
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</button>
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<ul class="dropdown-menu">
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<li><a href="#">Action</a></li>
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<li><a href="#">Another action</a></li>
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<li><a href="#">Something else here</a></li>
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<li role="separator" class="divider"></li>
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<li><a href="#">Separated link</a></li>
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</ul>
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</div><!-- /btn-group -->
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</div>
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{% highlight html %}
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<!-- Split button -->
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<div class="btn-group">
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<button type="button" class="btn btn-danger">Action</button>
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<button type="button" class="btn btn-danger dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
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<span class="sr-only">Toggle Dropdown</span>
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</button>
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<ul class="dropdown-menu">
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<li><a href="#">Action</a></li>
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<li><a href="#">Another action</a></li>
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<li><a href="#">Something else here</a></li>
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<li role="separator" class="divider"></li>
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<li><a href="#">Separated link</a></li>
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</ul>
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</div>
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{% endhighlight %}
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### Sizing
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Button dropdowns work with buttons of all sizes.
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<div class="bd-example">
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<div class="btn-toolbar" role="toolbar">
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<div class="btn-group">
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<button class="btn btn-secondary btn-lg dropdown-toggle" type="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
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Large button
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</button>
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<ul class="dropdown-menu">
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<li><a href="#">Action</a></li>
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<li><a href="#">Another action</a></li>
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<li><a href="#">Something else here</a></li>
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<li role="separator" class="divider"></li>
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<li><a href="#">Separated link</a></li>
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</ul>
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</div><!-- /btn-group -->
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</div><!-- /btn-toolbar -->
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<div class="btn-toolbar" role="toolbar">
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<div class="btn-group">
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<button class="btn btn-secondary btn-sm dropdown-toggle" type="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
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Small button
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</button>
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<ul class="dropdown-menu">
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<li><a href="#">Action</a></li>
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<li><a href="#">Another action</a></li>
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<li><a href="#">Something else here</a></li>
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<li role="separator" class="divider"></li>
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<li><a href="#">Separated link</a></li>
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</ul>
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</div><!-- /btn-group -->
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</div><!-- /btn-toolbar -->
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<div class="btn-toolbar" role="toolbar">
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<div class="btn-group">
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<button class="btn btn-secondary btn-xs dropdown-toggle" type="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
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Extra small button
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</button>
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<ul class="dropdown-menu">
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<li><a href="#">Action</a></li>
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<li><a href="#">Another action</a></li>
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<li><a href="#">Something else here</a></li>
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<li role="separator" class="divider"></li>
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<li><a href="#">Separated link</a></li>
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</ul>
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</div><!-- /btn-group -->
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</div><!-- /btn-toolbar -->
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</div><!-- /example -->
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{% highlight html %}
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<!-- Large button group -->
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<div class="btn-group">
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<button class="btn btn-secondary btn-lg dropdown-toggle" type="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
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Large button
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</button>
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<ul class="dropdown-menu">
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...
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</ul>
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</div>
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<!-- Small button group -->
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<div class="btn-group">
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<button class="btn btn-secondary btn-sm dropdown-toggle" type="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
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Small button
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</button>
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<ul class="dropdown-menu">
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...
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</ul>
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</div>
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<!-- Extra small button group -->
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<div class="btn-group">
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<button class="btn btn-secondary btn-xs dropdown-toggle" type="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
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Extra small button
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</button>
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<ul class="dropdown-menu">
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...
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</ul>
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</div>
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{% endhighlight %}
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### Dropup variation
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Trigger dropdown menus above elements by adding `.dropup` to the parent.
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<div class="bd-example">
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<div class="btn-toolbar" role="toolbar">
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<div class="btn-group dropup">
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<button type="button" class="btn btn-secondary">Dropup</button>
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<button type="button" class="btn btn-secondary dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
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<span class="sr-only">Toggle Dropdown</span>
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</button>
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<ul class="dropdown-menu">
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<li><a href="#">Action</a></li>
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<li><a href="#">Another action</a></li>
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<li><a href="#">Something else here</a></li>
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<li role="separator" class="divider"></li>
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<li><a href="#">Separated link</a></li>
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</ul>
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</div><!-- /btn-group -->
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<div class="btn-group dropup">
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<button type="button" class="btn btn-primary">Right dropup</button>
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<button type="button" class="btn btn-primary dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
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<span class="sr-only">Toggle Dropdown</span>
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</button>
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<ul class="dropdown-menu dropdown-menu-right">
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<li><a href="#">Action</a></li>
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<li><a href="#">Another action</a></li>
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<li><a href="#">Something else here</a></li>
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<li role="separator" class="divider"></li>
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<li><a href="#">Separated link</a></li>
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</ul>
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</div><!-- /btn-group -->
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</div>
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</div>
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{% highlight html %}
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<div class="btn-group dropup">
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<button type="button" class="btn btn-secondary">Dropup</button>
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<button type="button" class="btn btn-secondary dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
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<span class="sr-only">Toggle Dropdown</span>
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</button>
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<ul class="dropdown-menu">
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<!-- Dropdown menu links -->
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</ul>
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</div>
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{% endhighlight %}
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