.logo1 {  background-image: url(logo1.gif)}
.logo2 {  background-image: url(logo2.gif)}
.logo3 {  background-image: url(logo3.gif)}
.logo4 {  background-image: url(logo4.gif)}
.fill-top {  background-image: url(fill-top.gif)}
.logo1-2 {  background-image: url(logo1-1.gif)}
.fill-m {  background-image: url(fill-m.gif)}
.fill-bottom {  background-image: url(fill-bottom.gif)}