编辑下面的代码:【加编码】
<html> <head> <style> p { background-color:yellow; } p.margin { margin:100px 50px; } </style> </head> <body> <p>This is a paragraph with no specified margins.</p> <p class="margin">This is a paragraph with specified margins.</p> </body> </html>
结果: 【此窗口】 帮助?
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