Webmaster is not as powerful when tracing where css comes from - that is where firefox with firebug are useful.
I'm not sure I understand what your are after, but hopefully this helps.
I used firebug to look at the css for an item in your recommended products list on a product page.
If it is the font size you want to change, it looks like it is from li.ItemsList
<li class="ItemsList">
It looks like the font style seems to be inherited from td.
from firebug:
a:hover {skin1.css (line 11)
color:#CC6600;
text-decoration:none;
}
a:link {skin1.css (line 5)
color:#330000;
text-decoration:none;
}
Inherited fromli.ItemsList
.ItemsList {skin1.css (line 14
color:#330000;
font-size:10px;
font-weight:bold;
}
Inherited fromtd.DialogBox
body, p, div, th, td, p, input, select, textarea {skin1.css (line 1)
color:#000000;
font-family:Georgia,Arial,Helvetica,Sans-serif;
font-size:100%;
}
Inherited fromtd.DialogBorder
body, p, div, th, td, p, input, select, textarea {skin1.css (line 1)
color:#000000;
font-family:Georgia,Arial,Helvetica,Sans-serif;
font-size:100%;
}
Inherited fromtd.center-coll
body, p, div, th, td, p, input, select, textarea {skin1.css (line 1)
color:#000000;
font-family:Georgia,Arial,Helvetica,Sans-serif;
font-size:100%;
}
Inherited fromtd
body, p, div, th, td, p, input, select, textarea {skin1.css (line 1)
color:#000000;
font-family:Georgia,Arial,Helvetica,Sans-serif;
font-size:100%;
}
Inherited frombody
body, p, div, th, td, p, input, select, textarea {skin1.css (line 1)
color:#000000;
font-family:Georgia,Arial,Helvetica,Sans-serif;
font-size:100%;
}