[jQuery] bug or misuse in slideDown?

[jQuery] bug or misuse in slideDown?

Hello, I use following js
$(document).ready(function(){
$(".hfTitle").hover(function(){
$(".hfCatDescription",this.parentNode).slideDown("fast");
},function(){
$(".hfCatDescription",this.parentNode).slideUp("fast");
});
$(".hfCatDescription").hide();
});
to slideDown the following info under a link.
<td colspan="5" class="hfTitle">
<a href="http://...">Produkt 'Steuer'</a>
<div class="hfCatDescription">Das Produkt 'Steuer'</div>
</td>
If the effect is done several times, the whitespace under or in the
div becomes bigger and bigger. At first it looks also a little bit
small. The class definitions is this:
.hfCatDescription {
font-size: 12px;
color: #555555;
padding: 4px 5px 3px 10px;
}
Should this be changed to something else?
I'm very grateful for this nice and relativly easy to use js-Library
or is it called framework nowadays :-)
With regards,
__Janko Hauser
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