代码示例:(标识:css_syntax_1)
<!DOCTYPE html>
<html>
<head>
<style>
p {
  color: red;
  text-align: center;
} 
</style>
</head>
<body>

<p>Hello World!</p>
<p>这些段落是通过 CSS 设置样式的。</p>

</body>
</html>
运行结果: