CSS的background属性的缩写顺序

background的值的顺序是background-color，background-image，background-repeat，background-attachment，background-position,background-size。

body
{ 
background: #ff0000 url(/i/eg_bg_03.gif) no-repeat fixed center/100% 100%; 
}

如果用background-size,一定要用/分隔