本章介绍Font Awesome Spinner图标的用法.假设自定义是CSS类名，我们在其中定义了大小和颜色，如下面给出的示例所示.
<html>
<head>
<link rel = "stylesheet" href = "https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.3.0/css/font-awesome.min.css">
<style> i.custom {font-size: 2em; color: gray;}
</style>
</head>
<body> <i class = "fa fa-adjust custom"></i>
</body>
</html>下表显示了Font Awesome Spinner图标的用法和结果.替换<身体>上面程序的标签，用表中给出的代码得到相应的输出 :
| 用法 | 结果 |
|---|---|
| < i class ="fa fa -circle-o-notch custom"></i> | |
| < i class ="fa fa-cog custom"></i> | |
| < i class =" fa fa-gear custom"></i> | |
| < i class ="fa fa-refresh custom"></i> | |
| < i class ="fa fa-spinner custom" ></i> |
