背景图片 

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
    <meta http-equiv="Content-type" content="text/html; charset=UTF-8" />
    <style type="text/css" media="screen" id="test">
        div{
            width:600px;
            height:600px;
            border: 1px solid #999;
            background-position:center;
            background-repeat:no-repeat;
        }
        .test1{
            background-color:#DDD;
            background-image:url("1.jpg");
            float:left;
            
        }
        .test2{
            background-image:url("2.png");
            /*知识点*/
            background-size:50% 50%;
            float:left;
        }
        .test3{
            background-image:url(3.jpg);
            float:right;
        }
    </style>
</head>
<body>
    <div id="test" class="test1">
        
    </div>
    <div id="test" class="test2">
        
    </div>
    <div id="test" class="test3">
        
    </div>
</body>
</html>

 

posted @ 2018-12-20 23:25  12-num  阅读(81)  评论(0)    收藏  举报