Header line problem (I think…)

Hello everybody !

I have a problem with one line which appears one several pages of my blog (theme : Hybrid original 0.2). I tried to search on several sites (first blog for me, no knowledge of code) but no solutions appears.

Just see here :
author’s page : http://www.informatiqueetlibertes.fr/a-propos/
article : http://www.informatiqueetlibertes.fr/2011/11/test/
archive : http://www.informatiqueetlibertes.fr/2011/11/

I want to suppress the line at the top of each page (Browse:XXX / XXX / XXX).

I try to find the line on header.php or style.css but with no results. Can somebody help me and tells me the line to supress/modify ?

I give you theses links to see :
http://pastebin.com/XLU1rbvj (header.php)
http://pastebin.com/tNr3aY1r (style.dev.css)
http://pastebin.com/Mp5UCT52 (style.css)

Thanks a lot !