先看看效果图：
代码：
<Meta charset="utf-8">
带动画过的渡弹出框
<button class="btn btn-primary" type="button">点击我
<div class="modal fade" id="mymodal">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal">
<span aria-hidden="true">×<span class="sr-only">Close
标题
弹出窗主体内容