设置了背景图片以后，再加背景颜色加不上是怎么回事呀？

background: url(http://img1.sycdn.imooc.com//54cf2365000140e600740095.jpg) no-repeat left top/50px,
                url(http://img1.sycdn.imooc.com//54cf238a0001728d00740095.jpg) no-repeat center top/60px,
                url(http://img1.sycdn.imooc.com//54cf23b60001fd9700740096.jpg) no-repeat right top/70px;
    margin:0 0 20px 0;

咧开嘴角就叫笑

2015-06-17

源自：十天精通CSS3 5-4

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Cast1e
2015-08-07

background-position: left top, 80px 0, 160px 0;
    background-repeat: no-repeat, no-repeat, no-repeat;
    background-color:red;
    margin:0 0 20px 0;    并不是的写在哪都可以大概是你浏览器问题我用的是FF