CSS高度100％在TD上不起作用

Question

I don't understand why height 100% for css link is not inheriting height value pointed at td or table? But width value with 100% inherits value of the td or table.

 .mybutton a { display: block; width: 100%; height: 100%; background: #666666; color: #FFFFFF } .mybutton a:hover { display: block; width: 100%; height: 100%; background: #666666; color: #FFFFFF } 

 <table border="0" cellpadding="0" cellspacing="0" width="210" height="50"> <tr> <td width="210" height="50" class="mybutton"><p align="center"><a href="#">BUTTON</a></p></td> </tr> </table> 

Answer 1

对p标签元素使用height:inherit 。