Fix the cell dimension

Hi Jane,

I have this problem, I have designed a table with only one cell like this:
<P>

<TABLE cellSpacing=1 cellPadding=1 high=100% width="100%" border=1>

<TBODY>

<TR>

<TD style="WIDTH: 960px; HEIGHT: 20px"><STRONG>&nbsp;DESCRIZIONE

INTERVENTO</STRONG></TD></TR></TBODY></TABLE>
<TABLE cellSpacing=1 cellPadding=1 width="100%" border=1>

<TBODY>

<TR>

<TD

style="VERTICAL-ALIGN: top; WIDTH: 960px; HEIGHT: 350px"><STRONG>&nbsp;{$row.1R_DESC_value}</STRONG></SPAN></TD></TR></TBODY></TABLE></P>

<P>
now when I print the form this cell does not maintain the dimensions but it increases according to what it is written in the field how I can fix the cell dimension ?
Many Many thanks again

Ivano