bootstrap模态框

<a href="javascript:void(0);" class="btn btn-info add-expert" data-backdrop="static" data-toggle="modal" data-target="#mymodal">按钮</a>
<div class="modal fade" id="mymodal" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button>
<h4 class="modal-title" id="myModalLabel">标题</h4>
</div>
<div class="modal-body">
文本
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">关闭</button>
<button type="button" class="btn btn-primary">提交更改</button>
</div>
</div>
</div>
</div>