.esq {  background-image: url(imagens/esq.jpg); background-repeat: no-repeat; background-position: top}
.dir {  background-image: url(imagens/dir.jpg); background-repeat: no-repeat; background-position: top}
.baixo {  background-image: url(imagens/baixo.jpg); background-position: top; background-repeat: no-repeat}
.cima {  background-image: url(imagens/cima.jpg); background-repeat: no-repeat; background-position: bottom}
.esq_b {  background-image: url(imagens/esq_b.jpg); background-repeat: no-repeat; background-position: top}
.dir_b {  background-image: url(imagens/dir_b.jpg); background-repeat: no-repeat; background-position: top}