1.
background:background-color
url-background-image
background-repeat(repeat/repeat-y/repeat-x/no-repeat)
background-position(top/center/bottom/left/right(combination/length/percentage)
background-attachment(sroll(default)/fixed)
2.eg
background:white url(http://) no-repeat fixe top right
【CSS】Intermediate4:Background Images,布布扣,bubuko.com
【CSS】Intermediate4:Background Images
原文：http://www.cnblogs.com/yzhen/p/3659948.html