line height higher in Firefox than IE and Chrome - default Firefox settings?

The following code displays as desired in both IE and Chrome, but Firefox uses some default line height default that I am not able to override. So the line height is higher in Firefox, than in IE and Chrome. Does someone have some tip? Am I missing something? Any help is appreciated.

<table style="cellspacing:-200%;cellpadding:-200%;padding:-200%">
<tr style="cellspacing:-200%;cellpadding:-200%;padding:-200%">
<td style="cellspacing:-200%;cellpadding:-200%;padding:-200%">
<sup style="vertical-align: middle; position: relative; top: -0.5em; font-size: 50%">1</sup><font style="font-size: 50%"> Test 01.</font><br>
<sup style="vertical-align: middle; position: relative; top: -0.5em; font-size: 50%">2</sup><font style="font-size: 50%"> Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.</font>
</td>
</tr>
</table>

I know the code is not the best, but as I am using inline styling, I believe it should also work get the same output in Firefox right?

Thanks everyone in advance, windomearle.

Solution

Using this http://www.onlinehtmleditor.net/ (in the below window you can see a Preview of the code itself) as a debugger, I used the following code and it worked for me. Basically the tag line-height: value solved the problem. Hope it is useful for someone! Have a good day!

<table>
<tr>
<td>
<sup style="vertical-align: middle; position: relative; top: -0.15em; font-size: 45%; line-height: 4px">1</sup><font style="font-size: 49%; line-height: 6px"> Test 01.</font><br />
<sup style="vertical-align: middle; position: relative; top: -0.15em; font-size: 45%; line-height: 4px">2</sup><font style="font-size: 49%; line-height: 6px"> Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.</font>  
</td>
</tr>
</table>

Thanks, windomearle