115S站长学院 TIY
编辑您的代码：
<html> <head> <style type="text/css"> .important {font-weight:bold;} .warning {font-style:italic;} .important.warning {background:silver;} </style> </head> <body> <p class="important">This paragraph is very important.</p> <p class="warning">This is a warning.</p> <p class="important warning">This paragraph is a very important warning.</p> <p>This is a paragraph.</p> <p>...</p> <script> var _hmt = _hmt || []; (function() { var hm = document.createElement("script"); hm.src = "https://hm.baidu.com/hm.js?72e1eb95f3722bd737488ab37f422304"; var s = document.getElementsByTagName("script")[0]; s.parentNode.insertBefore(hm, s); })(); </script> </body> </html>
查看结果: