gnu grub manual bug

In https://www.gnu.org/software/grub/manual/grub/grub.html (I am showing 
the page source, lines 3058 through 3068):

<dt>&lsquo;<samp>left</samp>&rsquo;</dt>
dd><p>The distance from the left border of container to left border of 
the object in either of three formats:
         </p><table>
<tr><td width="20%">x</td><td width="70%">Value in pixels</td></tr>
<tr><td width="20%">p%</td><td width="70%">Percentage</td></tr>
<tr><td width="20%">p%+x</td><td width="70%">mixture of both</td></tr>
</table>
</dd>
<dt>&lsquo;<samp>top</samp>&rsquo;</dt>
<dd><p>The distance from the left border of container to left border of 
the object in same format.
</p></dd>


The definition of 'left' and 'top' are the same; the 'top' one is 
obviously incorrect.  What is tricky is that I think 'top' is the 
distance from the bottom border of the container to the top border of 
the object.