.main_link {margin: 0px;padding: 0px;width: 192px; height: 43px;display: block;}

#link_1050         {  background-image: url(./img/menu/1050-off.jpg); }
#link_1050:hover { background-image: url(./img/menu/1050-on.jpg);}

#link_600         {  background-image: url(./img/menu/600-off.jpg); }
#link_600:hover { background-image: url(./img/menu/600-on.jpg);}

#link_extra         {  background-image: url(./img/menu/extra-off.jpg); }
#link_extra:hover { background-image: url(./img/menu/extra-on.jpg);}

#link_foto         {  background-image: url(./img/menu/foto-off.jpg); }
#link_foto:hover { background-image: url(./img/menu/foto-on.jpg);}

#link_video         {  background-image: url(./img/menu/video-off.jpg); }
#link_video:hover { background-image: url(./img/menu/video-on.jpg);}

#link_referenze         {  background-image: url(./img/menu/parlano-off.jpg); }
#link_referenze:hover { background-image: url(./img/menu/parlano-on.jpg);}

#link_franchising         {  background-image: url(./img/menu/franchising-off.jpg); }
#link_franchising:hover { background-image: url(./img/menu/franchising-on.jpg);}

#link_certificazioni         {  background-image: url(./img/menu/certificazioni-off.jpg); }
#link_certificazioni:hover { background-image: url(./img/menu/certificazioni-on.jpg);}

#link_fiere         {  background-image: url(./img/menu/eventi-off.jpg); }
#link_fiere:hover { background-image: url(./img/menu/eventi-on.jpg);}

#link_download         {  background-image: url(./img/menu/download-off.jpg); }
#link_download:hover { background-image: url(./img/menu/download-on.jpg);}

#link_contatti         {  background-image: url(./img/menu/contatti-off.jpg); }
#link_contatti:hover { background-image: url(./img/menu/contatti-on.jpg);}

#link_regali         {  background-image: url(./img/menu/regali-off.jpg); height: 127px;}
#link_regali:hover { background-image: url(./img/menu/regali-on.jpg);}