wxcz_admin
/
smart-kuangshan-git


			
				
					
						
						
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							<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>菜鸟教程(runoob.com)</title>
    <style>
        html, body {
            background:grey;
        }
        .star-bottom:before {
            content: '';
            position: absolute;
            top: 150px;
            left: 50px;
            border-right: 16px solid transparent;
            border-top: 16px solid red;
            border-left: 16px solid transparent;
        }

        .star-bottom:after {
            content: '';
            position: absolute;
            top: 150px;
            left: 52px;
            border-right: 14px solid transparent;
            border-top: 14px solid #fff;
            border-left: 14px solid transparent;
        }
    </style>
</head>
<body>
    <div style="width:250px;height:150px;border:1px solid red;position: absolute;
            top: 200px;
            left: 200px;">
        <div class="star-bottom"><p>测试</p></div>
    </div>

</body>
</html>