Bootstrap 模态框水平垂直居中显示

在使用 Bootstrap 默认的模态框时，显示的位置是 top: 10%，这在页面不到一屏时没什么问题，但是只要超过一屏，如果在页面中部及底部就会发现模态框还是位于头部的 10%，体验很不好。如何水平垂直居中呢，这里介绍一个 bootstrap-modal 插件，可以达到效果。

只需在头部引入相关 css、js，然后模态框按照对应的 html 代码组织即可。

<link href="css/bootstrap-modal-bs3patch.css" rel="stylesheet" />
<link href="css/bootstrap-modal.css" rel="stylesheet" />
<script src="js/bootstrap-modalmanager.js"></script>
<script src="js/bootstrap-modal.js"></script>

<div id="full-width" class="modal container fade" tabindex="-1" style="display: none;">
  <div class="modal-header">
    <button type="button" class="close" data-dismiss="modal" aria-hidden="true">&times;</button>
    <h4 class="modal-title">Full Width</h4>
  </div>
  <div class="modal-body">
    <p>This modal will resize itself to the same dimensions as the container class.</p>
    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Duis sollicitudin ipsum ac ante fermentum suscipit. In ac augue non purus accumsan lobortis id sed nibh. Nunc egestas hendrerit ipsum, et porttitor augue volutpat non. Aliquam erat volutpat. Vestibulum scelerisque lobortis pulvinar. Aenean hendrerit risus neque, eget tincidunt leo. Vestibulum est tortor, commodo nec cursus nec, vestibulum vel nibh. Morbi elit magna, ornare placerat euismod semper, dignissim vel odio. Phasellus elementum quam eu ipsum euismod pretium.</p>
  </div>
  <div class="modal-footer">
    <button type="button" data-dismiss="modal" class="btn btn-default">Close</button>
    <button type="button" class="btn btn-primary">Save changes</button>
  </div>
</div>

【附录】
1、相关代码见 https://github.com/jschr/bootstrap-modal