Bootstrap中的合理Nav
对于Bootstrap中合理的导航，请使用.nav-justfied类。您可以尝试在网页上为合理的导航运行以下代码：
示例
<!DOCTYPE html>
<html>
<head>
<title>Bootstrap Example</title>
<link href = "/bootstrap/css/bootstrap.min.css" rel = "stylesheet">
<script src = "/scripts/jquery.min.js"></script>
<script src = "/bootstrap/js/bootstrap.min.js"></script>
</head>
<body style="background: yellow;">
<h2>Subjects</h2>
<ul class = "nav nav-tabs nav-justified">
<li class = "active"><a href = "#">Home</a></li>
<li><a href = "#">Tutorials</a></li>
<li><a href = "#">Videos</a></li>
<li><a href = "#">QA</a></li>
<li><a href = "#">Tutors</a></li>
</ul>
</body>
</html>