Code:
<style type="text/css">

a.button { 
text-decoration:none; 
padding:2px; 
font-size:14px; 
font-weight:600; 
color:black; 
border: 1px solid #000; 
background: #eeeeee;}

</style>

<table border="0" cellpadding="0" cellspacing="0">

	<tr bgcolor="black">
		<td width="1" height="1"></td>
		<td width="3"></td>
		<td width="50"></td>
		<td width="3"></td>
		
		<td width="1"></td>		
		<td width="3"></td>
		<td width="60"></td>
		<td width="3"></td>
		
		<td width="1"></td>		
		<td width="3"></td>
		<td width="50"></td>
		<td width="3"></td>
		
		<td width="1"></td>
		<td width="3"></td>
		<td width="300"></td>
		<td width="3"></td>
		<td width="1"></td>
		<td width="3"></td>
		<td width="150"></td>
		<td width="3"></td>
		<td width="1"></td>
		<td width="3"></td>
		<td width="150"></td>
		<td width="3"></td>
		<td width="1" bgcolor="black"></td>
	</tr>

	<tr>
		<td height="50" bgcolor="black"></td>
		<td></td>
		<td>14</td>
		<td></td>
		<td bgcolor="black"></td>		
		<td></td>		
		<td>
			<a href="../DB/deleteMenu.cfm?menu_N=14" class="button">delete</a>
		</td>
		<td></td>		
		<td bgcolor="black"></td>
		<td></td>
		<td>14</td>
		<td></td>
		<td bgcolor="black"></td>
		<td></td>
		<td>1111</td>
		<td></td>
		<td bgcolor="black"></td>
		<td></td>
		<td>2004-09-1615:45.49格</td>
		<td></td>
		<td bgcolor="black"></td>
		<td></td>
		<td>2004-09-1615:45.49格</td>
		<td></td>
		<td bgcolor="black"></td>
	</tr>
	<tr>
		<td colspan="25" bgcolor="black"></td>
	</tr>

	<tr>
		<td height="50" bgcolor="black"></td>
		<td></td>
		<td>15</td>
		<td></td>
		<td bgcolor="black"></td>		
		<td></td>		
		<td>
			<a href="../DB/deleteMenu.cfm?menu_N=15" class="button" onclick="return sure()">delete</a>
		</td>
		<td></td>		
		<td bgcolor="black"></td>
		<td></td>
		<td>15</td>
		<td></td>
		<td bgcolor="black"></td>
		<td></td>
		<td>2222</td>
		<td></td>
		<td bgcolor="black"></td>
		<td></td>
		<td>2004-09-1616:21.28格</td>
		<td></td>
		<td bgcolor="black"></td>
		<td></td>
		<td>2004-09-1616:21.28格</td>
		<td></td>
		<td bgcolor="black"></td>
	</tr>
	<tr>
		<td colspan="25" bgcolor="black"></td>
	</tr>
 
</table><br>

<a href="../DB/delete" class="button">delete_all</a>
If you copy the above code and past it in a blank html page, you can see
that Delete boxes in cells has no top border line while the delete box under the table has the border line.

I don't understand why the top border line of the delete boxes which is in the table cells are disappearing.

How can I get the top-border line?

Thanks in Advance