谁有好的CSS代码？？

BODY {BACKGROUND-POSITION: center 50%; BACKGROUND-ATTACHMENT: fixed; BACKGROUND-IMAGE: url(http://mumayi1.999kb.com/pic/2006-10-10/o1k0w1wh4vtk01kexpkx.jpg); } A:hover{LEFT: 1px; POSITION: relative; TOP: 1px; T