我使用Bootstrap Modals插件。我已经在我的页面联系人中输入了以下modal代码。php。

<h2>Small Modal</h2>
<button type="button" class="btn btn-info btn-lg" data-toggle="modal" data-target="#myModal">Open Small Modal</button>

<div class="modal fade" id="myModal" role="dialog">
<div class="modal-dialog modal-sm">
<div class="modal-content">

<div class="modal-header">
<button type="button" class="close" data-dismiss="modal">×</button>
<h4 class="modal-title">Modal Header</h4>
</div>

<div class="modal-body">
<p>This is a small modal.</p>
</div>

<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
</div>
</div>
</div>
</div> `

单击“打开模态”按钮后，模态出现，然后突然消失。奇怪的是，在右顶角我有一个x来关闭模态。有人能提供建议吗？

你好Ivana