在线运行代码 - 菜鸟教程

<!DOCTYPE html>
<html>
<body>

<p>This is a paragraph. This text has no alignment specified.</p>

<div style="text-align:center;border:1px solid red">
This is some text in a div element!
</div>

<p>This is a paragraph. This text has no alignment specified.</p>

</body>
</html>

源代码

动行结果