359浏览量
what:why:how:background:url("images/news/201504280800.png")no-repeat00transparent;改成background-image……
309浏览量
what:why:how:background-size:100;
942浏览量
background的用法记录一下：
body {
margin: 0px;
background-image: url(images/bj.jpg);
background-repeat:no-repeat;
background-position: top center;
padding-top:170px;
}
