基本的标签和带语境的标签：
<div class="container">
<span class="label label-default">default标签</span>
<span class="label label-danger">danger标签</span>
<span class="label label-info">info标签</span>
<span class="label label-primary">primary标签</span>
<span class="label label-success">success标签</span>
<span class="label label-warning">warning标签</span>
</div>
*变大可以有<h1>-<h6>标签包起来；
效果图如下：
