minor fix to style.css
minor fix to style.css

tectronics/web2conf,reingart/web2conf_googlecode,tectronics/web2conf,bkahlerventer/web2congress,reingart/web2conf_googlecode,bkahlerventer/web2congress,reingart/web2conf_googlecode,bkahlerventer/web2congress,tectronics/web2conf,reingart/web2conf_googlecode,tectronics/web2conf,bkahlerventer/web2congress