.background {  background-attachment: fixed; background-image: url(images/back.jpg); background-repeat: no-repeat; background-position: right top}
.background2 {  background-attachment: fixed; background-image: url(images/derrickbg.jpg); background-repeat: no-repeat; background-position: left bottom}
.background3 {  background-attachment: fixed; background-image: url(images/derrickbg2.jpg); background-repeat: no-repeat; background-position: left bottom}