Border around tr element on chrome doesn't work?

Border around tr element on chrome doesn't work?

<table>
<tbody>
<tr>
<td>
One
</td>
<td>
Two
</td>
</tr>
</tbody>
</table>
table tr
{
border:1px solid black;
}
http://jsfiddle.net/edi9999/VzPN2/
It seems like Chrome doesn't render the border, but it renders the border
if the selector is table tr td.
How can I set a border on a tr ?
This is a similar question: Set border to table tr, works in everything
except IE 6 & 7 , but it seems to work everywhere except for IE.
Thanks in advance