.background {  background-image: url(images/banner.jpg); background-repeat: no-repeat}
.back2 {  background-image: url(images/banner2.jpg); background-repeat: no-repeat}
.back3 {  background-image: url(images/banner3.jpg); background-repeat: no-repeat}
.back4 {  background-image: url(images/banner4.jpg); background-repeat: no-repeat}
body { font-family: Arial, sans-serif; }