.sub_1 {  background-image: url(Pag/01/bot.jpg); background-repeat: no-repeat}
.sub_2 {  background-image: url(Pag/02/bot.jpg); background-repeat: no-repeat; background-position: top}
.sub_3 {  background-image: url(Pag/03/bot.jpg); background-repeat: no-repeat; background-position: top}
.sub_4 {  background-image: url(Pag/04/bot.jpg); background-repeat: no-repeat; background-position: top}
.bot {  background-image: url(Pag/02/bot.jpg); background-repeat: no-repeat; background-position: top}
.bot6 {  background-image: url(Pag/02/bot6.jpg); background-repeat: no-repeat; background-position: top}