lovecoding
/
VIP24


			
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							<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        div{
            background: red;
        }
        #div1{
            background: green;
        }
        .aa{
            background: blue;
        }


        /* css选择器的优先级 
           style > id选择器> class选择器 >标签选择器 
            1000    100     10         1

        */

    </style>
</head>
<body>
    <div id="div1" class="aa" style="background:orange">1111</div>

    
</body>
</html>