payment.html

<!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>payment</title>
    <link rel="stylesheet" href="loginSignup.css">
</head>

<body>
    <div class="container">
        <form id="form">
            <h1>Payment</h1>
            <input type="name" id="name" placeholder="Enter name" class="box">
            <input type="number" name="" id="card" placeholder="enter your card number" class="box">
            <input type="number" id="cvv" placeholder="enter your cvv" class="box">
            <input type="date" id="expiry" value="09/23" class="box">
            <input type="submit" value="submit" name="" id="" class="submit">
        </form>
    </div>
</body>

</html>
<script src="pay.js"></script>