lovecoding
/
web0715


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        #id1{
            color: blue;
        }
        .b{
            color: yellow;
        }
        .a{
            color: red;
        }
        div{
            color: purple;
        }
    </style>
</head>
<body>
    <div class="a" id="id1">hello</div>
    <div class="a b">world</div>
    <div>你好</div>
</body>
</html>