Change "Enlarge" text under additional product images.

Hi,
I am trying to reduce the font size of "Enlarge" text under additional product images on product pages.
Here is the source view:

<noscript><a href="http://www.websitename.com/index.php?main_page=popup_image_additional&pID=15&pic=0&products_image_large_additional=images/large/Product1_01.jpg" target="_blank"><img src="images/Product1_01_LRG" alt="Product1" title=" Product1" width="100" height="100" /><br /><span class="imgLinkAdditional"> [COLOR="#FF0000"]Enlarge[/COLOR] </span></a></noscript><h4 class="addImgTitleB">Product1</h4></div>

I tried to add to the stylesheet.css the following:

.imgLinkAdditional {
font-size: 0.8em;
}
, but it has no effect on "Enlarge" font size.
Than, where should I look to reduce the font? It is regular size now, which is too large for this text.
thank you.

What addons do you have installed??

Enlarge is not part of the standard code base

It is "larger image" in standard code

You can try

.additionalImages {
        font-size: 0.8em;
        }

It worked, thank you, Kobra!

It is not an add-on, it is me who've changed the text.
Again, thank you!