trycss_attselector_valuelist_hyphen 在线代码实例

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<!DOCTYPE html>
<html>
<head>
<style>
    [lang|=en]
    {
    color:blue;
    }
</style>
</head>
<body>
    <h2>适用于:</h2>
    <p lang="en">你好!</p>
    <p lang="en-us">嗨!</p>
    <p lang="en-gb">小明!</p>
    <hr>
    <h2>不适用于:</h2>
    <p lang="us">嗨!</p>
    <p lang="no">嘿!</p>
</body>
</html>
 
 
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