App下載
實例代碼( Tip: 登錄后體驗更佳 )
<!DOCTYPE html>
<html>
<head>
<style>
    [title]
    {
    color:blue;
    }
</style>
</head>
<body>
    <h2>适用于:</h2>
    <h1 title="Hello world">你好世界</h1>
    <a title="w3cschool" href="http://w3cschool.cn">w3cschool</a>
    <hr>
    <h2>不适用于:</h2>
    <p>你好!</p>
</body>
</html>
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運行結果