[Plugin : Breadcrumb NavXT] Unexpected underline

Hello everyone,

I successfully installed the Breadcrumb Navxt plugin and I am satisfied with the results.

HOWEVER.

I experience an unexpected underline in my post page

An exemple is better than words :
http://image.noelshack.com/fichiers/2014/17/1398115058-capture.png

The weird fact is that the underline is only under the post link, not on the category or homepage link.

Do you guys have any insight about erasing that underline ?

You can see the page at this adress:
http://hoan.olympe.in/lifestyle/30-astuces-pour-impressionner-votre-entourage

I tried to add a “
.breadcrumbs a {
text-decoration: none;
}

At the end of my style.css file, doesn’t do much.

Thanks for your help !

Plugin :http://wordpress.org/plugins/breadcrumb-navxt/