W3School TIY
（请在下面的文本框中编辑您的代码，然后单击此按钮测试结果。）
编辑您的代码：
<html> <head> <style type="text/css"> h1, h2, h3, h4, h5, h6 { color:gray; background: white; padding: 10px; border: 1px solid black; font-family: Verdana; } </style> </head> <body> <h1>This is heading 1</h1> <h2>This is heading 2</h2> <h3>This is heading 3</h3> <h4>This is heading 4</h4> <h5>This is heading 5</h5> <h6>This is heading 6</h6> </body> </html>
查看结果: