HTML+CSS实现隔行换色

geha.png
第一种

<!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>隔行换色</title>
    <style>
        p:nth-child(odd) {
            color: red;
        }
        
        p:nth-child(even) {
            color: green;
        }
    </style>
</head>

<body>
    <p>我是红色的</p>
    <p>我是绿色的</p>
    <p>我是红色的</p>
    <p>我是绿色的</p>
    <p>我是红色的</p>
</body>

</html>

第二种

<!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>隔行换色</title>
    <style>
        p:nth-child(2n) {
            color: red;
        }
        
        p:nth-child(2n+1) {
            color: green;
        }
    </style>
</head>

<body>
    <p>我是红色的</p>
    <p>我是绿色的</p>
    <p>我是红色的</p>
    <p>我是绿色的</p>
    <p>我是红色的</p>
</body>

</html>

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