话不多少，直接上代码。
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<link rel="stylesheet" href="css/bootstrap.css">
<style>
body{
margin: 20px 0px;
}
</style>
</head>
<body>
<div class="container">
<div class="progress">
<div class="progress-bar progress-bar-danger progress-bar-striped active" style="width:60%">
60%
</div>
<div class="progress-bar progress-bar-sucess progress-bar-striped active" style="width:20%">
20%
</div>
</div>
</div>
</body>
</html>
效果如下：
十分简洁的代码，就可以出现这样的特效。
