index.html

<!DOCTYPE html>
<html lang="en">
<head>
    <title>OTP in JS</title>
    <link rel="stylesheet" href="style.css">
</head>
<body>
    <div class = "container">
        <h1>OTP Verification</h1>
        <p>
            Please type verification code sent 
            <span id="mobile">(000) 000-0000</span>
        </p>
        <p>The OTP will expire in <span id="Expire">120</span>s</p>
        <div class="row">
            <input type="number"/>
            <input type="number" disabled/>
            <input type="number" disabled/>
            <input type="number" disabled/>
        </div>
        <button type="button">Verify OTP</button>
        <p>
            Didn't receive code?
            <a href="javascript:void(0)" id="request" onclick="generateOTPs()">Request Again!</a>
        </p>
    </div>
    <script defer src="script.js"></script>
</body>
</html>