编辑下面的代码:
【加编码】
查看效果 »
<html> <head> <style> p.ex1 {margin-top:2cm;} </style> </head> <body> <p>A paragraph with no margins specified.</p> <p class="ex1">A paragraph with a 2cm top margin.</p> <p>A paragraph with no margins specified.</p> </body> </html>
结果:
【此窗口】
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