Change Font on Comment Section Fields

Hello,

I’ve just installed the ‘Math Comment Spam Protection’ in the hope of getting less Spammers to my site.

I’ve got a wee question – does anyone know how to change the font of the Question ‘Sum of x + x?’ to be the same as ‘Name’, ‘Email’, ‘Website’ etc that I have on the comment section, here’s an example:

Comment Section

These are the two bit of code that came with the Plug-in:

<p>
<label for="[fieldname_answer]">Spam protection: Sum of [operand1] + [operand2] ?</label> <span class="required">*</span>
<input id="[fieldname_answer]" name="[fieldname_answer]" type="text" value="" size="30" aria-required="true" />
<input type="hidden" name="[fieldname_hash]" value="[result]" />
</p>

And:

<?php if ( function_exists('math_comment_spam_protection') ) {
$mcsp_info = math_comment_spam_protection();
?> <p><input type="text" name="<?php echo $mcsp_info['fieldname_answer'] ?>" id="<?php echo $mcsp_info['fieldname_answer'] ?>" value="" size="22" tabindex="4" />
<label for="<?php echo $mcsp_info['fieldname_answer'] ?>">SUM OF <?php echo $mcsp_info['operand1'] . ' + ' . $mcsp_info['operand2'] . ' ?' ?></label>
<input type="hidden" name="<?php echo $mcsp_info['fieldname_hash'] ?>" value="<?php echo $mcsp_info['result']; ?>" />
</p>
<?php } // if function_exists... ?>

the second I’ve got pasted into my Comments.php.

Any ideas?
Thanks.