XSL div changes when rendered

[macchisp]

Hi all,

I have a div tag that when editing says this:

<div class="leads">

but when viewed in FF 2.0, it changes to:

<div class="leads webdeveloper-relative-positioned-element">

My CSS for "leads" is

.leads
{
position:relative;
top: 0px;
left: 15px;
width: 25%;
}

Does it matter that it does this? Why is it doing it?

Please let me know if there is anything else you need from me.

Thanks.