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Since the "remote" option is no longer available in v4 the reference to the "loaded.bs.modal" event is no longer needed, too.
492 lines
20 KiB
Markdown
492 lines
20 KiB
Markdown
---
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layout: docs
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title: Modal
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group: components
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---
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Modals are streamlined, but flexible, dialog prompts with the minimum required functionality and smart defaults.
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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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**Due to how HTML5 defines its semantics, [the `autofocus` HTML attribute](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input#attr-autofocus) has no effect in Bootstrap modals.** To achieve the same effect, use some custom JavaScript:
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{% highlight js %}
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$('#myModal').on('shown.bs.modal', function () {
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$('#myInput').focus()
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})
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{% endhighlight %}
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{% callout warning %}
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#### Multiple open modals not supported
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Be sure not to open a modal while another is still visible. Showing more than one modal at a time requires custom code.
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{% endcallout %}
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{% callout warning %}
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#### Modal markup placement
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Always try to place a modal's HTML code in a top-level position in your document to avoid other components affecting the modal's appearance and/or functionality.
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{% endcallout %}
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{% callout warning %}
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#### Mobile device caveats
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There are some caveats regarding using modals on mobile devices. [See our browser support docs]({{ site.baseurl }}/getting-started/browsers-devices/#modals-and-dropdowns-on-mobile) for details.
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{% endcallout %}
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### Static example
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A rendered modal with header, body, and set of actions in the footer.
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<div class="bd-example bd-example-modal">
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<div class="modal">
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<div class="modal-dialog" role="document">
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<div class="modal-content">
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<div class="modal-header">
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<button type="button" class="close" data-dismiss="modal" aria-label="Close">
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<span aria-hidden="true">×</span>
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</button>
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<h4 class="modal-title">Modal title</h4>
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</div>
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<div class="modal-body">
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<p>One fine body…</p>
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</div>
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<div class="modal-footer">
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<button type="button" class="btn btn-secondary" data-dismiss="modal">Close</button>
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<button type="button" class="btn btn-primary">Save changes</button>
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</div>
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</div><!-- /.modal-content -->
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</div><!-- /.modal-dialog -->
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</div><!-- /.modal -->
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</div>
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{% highlight html %}
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<div class="modal fade">
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<div class="modal-dialog" role="document">
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<div class="modal-content">
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<div class="modal-header">
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<button type="button" class="close" data-dismiss="modal" aria-label="Close">
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<span aria-hidden="true">×</span>
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</button>
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<h4 class="modal-title">Modal title</h4>
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</div>
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<div class="modal-body">
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<p>One fine body…</p>
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</div>
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<div class="modal-footer">
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<button type="button" class="btn btn-secondary" data-dismiss="modal">Close</button>
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<button type="button" class="btn btn-primary">Save changes</button>
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</div>
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</div><!-- /.modal-content -->
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</div><!-- /.modal-dialog -->
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</div><!-- /.modal -->
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{% endhighlight %}
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### Live demo
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Toggle a modal via JavaScript by clicking the button below. It will slide down and fade in from the top of the page.
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<div id="myModal" class="modal fade" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
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<div class="modal-dialog" role="document">
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<div class="modal-content">
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<div class="modal-header">
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<button type="button" class="close" data-dismiss="modal" aria-label="Close">
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<span aria-hidden="true">×</span>
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</button>
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<h4 class="modal-title" id="myModalLabel">Modal title</h4>
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</div>
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<div class="modal-body">
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<h4>Text in a modal</h4>
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<p>Duis mollis, est non commodo luctus, nisi erat porttitor ligula.</p>
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<h4>Popover in a modal</h4>
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<p>This <a href="#" role="button" class="btn btn-secondary popover-test" title="A Title" data-content="And here's some amazing content. It's very engaging. right?">button</a> should trigger a popover on click.</p>
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<h4>Tooltips in a modal</h4>
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<p><a href="#" class="tooltip-test" title="Tooltip">This link</a> and <a href="#" class="tooltip-test" title="Tooltip">that link</a> should have tooltips on hover.</p>
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<hr>
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<h4>Overflowing text to show scroll behavior</h4>
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<p>Cras mattis consectetur purus sit amet fermentum. Cras justo odio, dapibus ac facilisis in, egestas eget quam. Morbi leo risus, porta ac consectetur ac, vestibulum at eros.</p>
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<p>Praesent commodo cursus magna, vel scelerisque nisl consectetur et. Vivamus sagittis lacus vel augue laoreet rutrum faucibus dolor auctor.</p>
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<p>Aenean lacinia bibendum nulla sed consectetur. Praesent commodo cursus magna, vel scelerisque nisl consectetur et. Donec sed odio dui. Donec ullamcorper nulla non metus auctor fringilla.</p>
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<p>Cras mattis consectetur purus sit amet fermentum. Cras justo odio, dapibus ac facilisis in, egestas eget quam. Morbi leo risus, porta ac consectetur ac, vestibulum at eros.</p>
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<p>Praesent commodo cursus magna, vel scelerisque nisl consectetur et. Vivamus sagittis lacus vel augue laoreet rutrum faucibus dolor auctor.</p>
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<p>Aenean lacinia bibendum nulla sed consectetur. Praesent commodo cursus magna, vel scelerisque nisl consectetur et. Donec sed odio dui. Donec ullamcorper nulla non metus auctor fringilla.</p>
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<p>Cras mattis consectetur purus sit amet fermentum. Cras justo odio, dapibus ac facilisis in, egestas eget quam. Morbi leo risus, porta ac consectetur ac, vestibulum at eros.</p>
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<p>Praesent commodo cursus magna, vel scelerisque nisl consectetur et. Vivamus sagittis lacus vel augue laoreet rutrum faucibus dolor auctor.</p>
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<p>Aenean lacinia bibendum nulla sed consectetur. Praesent commodo cursus magna, vel scelerisque nisl consectetur et. Donec sed odio dui. Donec ullamcorper nulla non metus auctor fringilla.</p>
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</div>
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<div class="modal-footer">
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<button type="button" class="btn btn-secondary" data-dismiss="modal">Close</button>
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<button type="button" class="btn btn-primary">Save changes</button>
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</div>
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</div><!-- /.modal-content -->
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</div><!-- /.modal-dialog -->
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</div>
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<div class="bd-example" style="padding-bottom: 24px;">
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<button type="button" class="btn btn-primary btn-lg" data-toggle="modal" data-target="#myModal">
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Launch demo modal
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</button>
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</div>
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{% highlight html %}
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<!-- Button trigger modal -->
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<button type="button" class="btn btn-primary btn-lg" data-toggle="modal" data-target="#myModal">
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Launch demo modal
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</button>
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<!-- Modal -->
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<div class="modal fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
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<div class="modal-dialog" role="document">
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<div class="modal-content">
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<div class="modal-header">
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<button type="button" class="close" data-dismiss="modal" aria-label="Close">
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<span aria-hidden="true">×</span>
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</button>
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<h4 class="modal-title" id="myModalLabel">Modal title</h4>
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</div>
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<div class="modal-body">
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...
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</div>
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<div class="modal-footer">
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<button type="button" class="btn btn-secondary" data-dismiss="modal">Close</button>
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<button type="button" class="btn btn-primary">Save changes</button>
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</div>
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</div>
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</div>
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</div>
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{% endhighlight %}
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{% callout warning %}
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#### Make modals accessible
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Be sure to add `role="dialog"` and `aria-labelledby="..."`, referencing the modal title, to `.modal`, and `role="document"` to the `.modal-dialog` itself.
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Additionally, you may give a description of your modal dialog with `aria-describedby` on `.modal`.
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{% endcallout %}
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{% callout info %}
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#### Embedding YouTube videos
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Embedding YouTube videos in modals requires additional JavaScript not in Bootstrap to automatically stop playback and more. [See this helpful Stack Overflow post](https://stackoverflow.com/questions/18622508/bootstrap-3-and-youtube-in-modal) for more information.
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{% endcallout %}
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## Optional sizes
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Modals have two optional sizes, available via modifier classes to be placed on a `.modal-dialog`. These sizes kick in at certain breakpoints to avoid horizontal scrollbars on narrower viewports.
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<div class="bd-example">
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<button type="button" class="btn btn-primary" data-toggle="modal" data-target=".bd-example-modal-lg">Large modal</button>
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<button type="button" class="btn btn-primary" data-toggle="modal" data-target=".bd-example-modal-sm">Small modal</button>
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</div>
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{% highlight html %}
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<!-- Large modal -->
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<button class="btn btn-primary" data-toggle="modal" data-target=".bd-example-modal-lg">Large modal</button>
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<div class="modal fade bd-example-modal-lg" tabindex="-1" role="dialog" aria-labelledby="myLargeModalLabel" aria-hidden="true">
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<div class="modal-dialog modal-lg">
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<div class="modal-content">
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...
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</div>
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</div>
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</div>
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<!-- Small modal -->
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<button type="button" class="btn btn-primary" data-toggle="modal" data-target=".bd-example-modal-sm">Small modal</button>
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<div class="modal fade bd-example-modal-sm" tabindex="-1" role="dialog" aria-labelledby="mySmallModalLabel" aria-hidden="true">
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<div class="modal-dialog modal-sm">
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<div class="modal-content">
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...
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</div>
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</div>
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</div>
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{% endhighlight %}
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<div class="modal fade bd-example-modal-lg" tabindex="-1" role="dialog" aria-labelledby="myLargeModalLabel" aria-hidden="true">
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<div class="modal-dialog modal-lg">
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<div class="modal-content">
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<div class="modal-header">
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<button type="button" class="close" data-dismiss="modal" aria-label="Close">
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<span aria-hidden="true">×</span>
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</button>
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<h4 class="modal-title" id="myLargeModalLabel">Large modal</h4>
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</div>
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<div class="modal-body">
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...
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</div>
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</div>
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</div>
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</div>
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<div class="modal fade bd-example-modal-sm" tabindex="-1" role="dialog" aria-labelledby="mySmallModalLabel" aria-hidden="true">
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<div class="modal-dialog modal-sm">
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<div class="modal-content">
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<div class="modal-header">
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<button type="button" class="close" data-dismiss="modal" aria-label="Close">
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<span aria-hidden="true">×</span>
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</button>
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<h4 class="modal-title" id="mySmallModalLabel">Small modal</h4>
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</div>
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<div class="modal-body">
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...
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</div>
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</div>
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</div>
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</div>
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## Remove animation
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For modals that simply appear rather than fade in to view, remove the `.fade` class from your modal markup.
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{% highlight html %}
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<div class="modal" tabindex="-1" role="dialog" aria-labelledby="..." aria-hidden="true">
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...
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</div>
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{% endhighlight %}
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## Using the grid system
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To take advantage of the Bootstrap grid system within a modal, just nest `.container-fluid` within the `.modal-body` and then use the normal grid system classes within this container.
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{% example html %}
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<div id="gridSystemModal" class="modal fade" tabindex="-1" role="dialog" aria-labelledby="gridModalLabel" aria-hidden="true">
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<div class="modal-dialog" role="document">
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<div class="modal-content">
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<div class="modal-header">
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<button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">×</span></button>
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<h4 class="modal-title" id="gridModalLabel">Modal title</h4>
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</div>
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<div class="modal-body">
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<div class="container-fluid bd-example-row">
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<div class="row">
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<div class="col-md-4">.col-md-4</div>
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<div class="col-md-4 col-md-offset-4">.col-md-4 .col-md-offset-4</div>
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</div>
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<div class="row">
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<div class="col-md-3 col-md-offset-3">.col-md-3 .col-md-offset-3</div>
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<div class="col-md-2 col-md-offset-4">.col-md-2 .col-md-offset-4</div>
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</div>
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<div class="row">
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<div class="col-md-6 col-md-offset-3">.col-md-6 .col-md-offset-3</div>
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</div>
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<div class="row">
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<div class="col-sm-9">
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Level 1: .col-sm-9
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<div class="row">
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<div class="col-xs-8 col-sm-6">
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Level 2: .col-xs-8 .col-sm-6
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</div>
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<div class="col-xs-4 col-sm-6">
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Level 2: .col-xs-4 .col-sm-6
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</div>
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</div>
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</div>
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</div>
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</div>
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</div>
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<div class="modal-footer">
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<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
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<button type="button" class="btn btn-primary">Save changes</button>
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</div>
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</div>
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</div>
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</div>
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<div class="bd-example bd-example-padded-bottom">
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<button type="button" class="btn btn-primary btn-lg" data-toggle="modal" data-target="#gridSystemModal">
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Launch demo modal
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</button>
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</div>
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{% endexample %}
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## Varying modal content based on trigger button
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Have a bunch of buttons that all trigger the same modal, just with slightly different contents? Use `event.relatedTarget` and [HTML `data-*` attributes](https://developer.mozilla.org/en-US/docs/Web/Guide/HTML/Using_data_attributes) (possibly [via jQuery](https://api.jquery.com/data/)) to vary the contents of the modal depending on which button was clicked. See the Modal Events docs for details on `relatedTarget`.
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{% example html %}
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<div class="bd-example">
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<button type="button" class="btn btn-primary" data-toggle="modal" data-target="#exampleModal" data-whatever="@mdo">Open modal for @mdo</button>
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<button type="button" class="btn btn-primary" data-toggle="modal" data-target="#exampleModal" data-whatever="@fat">Open modal for @fat</button>
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<button type="button" class="btn btn-primary" data-toggle="modal" data-target="#exampleModal" data-whatever="@getbootstrap">Open modal for @getbootstrap</button>
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<div class="modal fade" id="exampleModal" tabindex="-1" role="dialog" aria-labelledby="exampleModalLabel" aria-hidden="true">
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<div class="modal-dialog" role="document">
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<div class="modal-content">
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<div class="modal-header">
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<button type="button" class="close" data-dismiss="modal" aria-label="Close">
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<span aria-hidden="true">×</span>
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</button>
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<h4 class="modal-title" id="exampleModalLabel">New message</h4>
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</div>
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<div class="modal-body">
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<form>
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<div class="form-group">
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<label for="recipient-name" class="form-control-label">Recipient:</label>
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<input type="text" class="form-control" id="recipient-name">
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</div>
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<div class="form-group">
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<label for="message-text" class="form-control-label">Message:</label>
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<textarea class="form-control" id="message-text"></textarea>
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</div>
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</form>
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</div>
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<div class="modal-footer">
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<button type="button" class="btn btn-secondary" data-dismiss="modal">Close</button>
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<button type="button" class="btn btn-primary">Send message</button>
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</div>
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</div>
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</div>
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</div>
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</div>
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{% endexample %}
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{% highlight js %}
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$('#exampleModal').on('show.bs.modal', function (event) {
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var button = $(event.relatedTarget) // Button that triggered the modal
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var recipient = button.data('whatever') // Extract info from data-* attributes
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// If necessary, you could initiate an AJAX request here (and then do the updating in a callback).
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// Update the modal's content. We'll use jQuery here, but you could use a data binding library or other methods instead.
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var modal = $(this)
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modal.find('.modal-title').text('New message to ' + recipient)
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modal.find('.modal-body input').val(recipient)
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})
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{% endhighlight %}
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## Modals with dynamic heights
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If the height of a modal changes while it is open, you should call `$('#myModal').data('bs.modal').handleUpdate()` to readjust the modal's position in case a scrollbar appears.
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## Usage
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The modal plugin toggles your hidden content on demand, via data attributes or JavaScript. It also adds `.modal-open` to the `<body>` to override default scrolling behavior and generates a `.modal-backdrop` to provide a click area for dismissing shown modals when clicking outside the modal.
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### Via data attributes
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Activate a modal without writing JavaScript. Set `data-toggle="modal"` on a controller element, like a button, along with a `data-target="#foo"` or `href="#foo"` to target a specific modal to toggle.
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{% highlight html %}
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<button type="button" data-toggle="modal" data-target="#myModal">Launch modal</button>
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{% endhighlight %}
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### Via JavaScript
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Call a modal with id `myModal` with a single line of JavaScript:
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{% highlight js %}$('#myModal').modal(options){% endhighlight %}
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### Options
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Options can be passed via data attributes or JavaScript. For data attributes, append the option name to `data-`, as in `data-backdrop=""`.
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<div class="table-responsive">
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<table class="table table-bordered table-striped">
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<thead>
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<tr>
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<th style="width: 100px;">Name</th>
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<th style="width: 50px;">Type</th>
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<th style="width: 50px;">Default</th>
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<th>Description</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<td>backdrop</td>
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<td>boolean or the string <code>'static'</code></td>
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<td>true</td>
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<td>Includes a modal-backdrop element. Alternatively, specify <code>static</code> for a backdrop which doesn't close the modal on click.</td>
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</tr>
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<tr>
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<td>keyboard</td>
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<td>boolean</td>
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<td>true</td>
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<td>Closes the modal when escape key is pressed</td>
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</tr>
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<tr>
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<td>show</td>
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<td>boolean</td>
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<td>true</td>
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<td>Shows the modal when initialized.</td>
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</tr>
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</tbody>
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</table>
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</div>
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### Methods
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#### `.modal(options)`
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Activates your content as a modal. Accepts an optional options `object`.
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{% highlight js %}
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$('#myModal').modal({
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keyboard: false
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})
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{% endhighlight %}
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#### `.modal('toggle')`
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Manually toggles a modal. **Returns to the caller before the modal has actually been shown or hidden** (i.e. before the `shown.bs.modal` or `hidden.bs.modal` event occurs).
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{% highlight js %}$('#myModal').modal('toggle'){% endhighlight %}
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#### `.modal('show')`
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Manually opens a modal. **Returns to the caller before the modal has actually been shown** (i.e. before the `shown.bs.modal` event occurs).
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{% highlight js %}$('#myModal').modal('show'){% endhighlight %}
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#### `.modal('hide')`
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Manually hides a modal. **Returns to the caller before the modal has actually been hidden** (i.e. before the `hidden.bs.modal` event occurs).
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{% highlight js %}$('#myModal').modal('hide'){% endhighlight %}
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### Events
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Bootstrap's modal class exposes a few events for hooking into modal functionality. All modal events are fired at the modal itself (i.e. at the `<div class="modal">`).
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<div class="table-responsive">
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<table class="table table-bordered table-striped">
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<thead>
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<tr>
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<th style="width: 150px;">Event Type</th>
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<th>Description</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<td>show.bs.modal</td>
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<td>This event fires immediately when the <code>show</code> instance method is called. If caused by a click, the clicked element is available as the <code>relatedTarget</code> property of the event.</td>
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</tr>
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<tr>
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<td>shown.bs.modal</td>
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<td>This event is fired when the modal has been made visible to the user (will wait for CSS transitions to complete). If caused by a click, the clicked element is available as the <code>relatedTarget</code> property of the event.</td>
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</tr>
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<tr>
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<td>hide.bs.modal</td>
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<td>This event is fired immediately when the <code>hide</code> instance method has been called.</td>
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</tr>
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<tr>
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<td>hidden.bs.modal</td>
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<td>This event is fired when the modal has finished being hidden from the user (will wait for CSS transitions to complete).</td>
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</tr>
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</tbody>
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</table>
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</div>
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{% highlight js %}
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$('#myModal').on('hidden.bs.modal', function (e) {
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// do something...
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})
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{% endhighlight %}
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