<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Bootstrap 实例 - 模态框（Modal）插件</title>
<link rel="stylesheet" href="https://cdn.static.runoob.com/libs/bootstrap/3.3.7/css/bootstrap.min.css">
<script src="https://cdn.static.runoob.com/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdn.static.runoob.com/libs/bootstrap/3.3.7/js/bootstrap.min.js"></script>
</head>
<body>
<h2>创建模态框（Modal）</h2>
<!-- 按钮触发模态框 -->
<button class="btn btn-primary btn-lg" data-toggle="modal" data-target="#myModal">
开始演示模态框
</button>
<!-- 模态框（Modal） -->
<div class="modal fade" id="myModal" tabindex="-1" 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">
模态框（Modal）标题
</h4>
</div>
<div class="modal-body">
在这里添加一些文本
</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><!-- /.modal-content -->
</div><!-- /.modal -->
</div>
</body>
</html>
或者脚本控制 <script> $('#myModal').modal('toggle'); </scirpt>
原文：http://www.runoob.com/try/try.php?filename=bootstrap3-plugin-modal