trycss_link_focus 在线代码实例

实例代码( Tip: 登录后体验更佳 )
运行代码

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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"> 
<title>W3Cschool教程(w3cschool.cn)</title> 
<style>
    input:focus
    {
        background-color:yellow;
    }
</style>
</head>
<body>
    <form action="demo-form" method="get">
        第一个名字: <input type="text" name="fname" /><br>
        第二个名字: <input type="text" name="lname" /><br>
        <input type="submit" value="提交" />
    </form>
    
    <p><b>注意:</b>仅当 !DOCTYPE已经声明时 IE8支持 :focus.</p>
</body>
</html>
 
 
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运行结果
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