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@amit08255
Created November 13, 2025 18:19
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HTML OTP Input
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Verify Your Account</title>
<style>
body {
font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
background: #f5f5f5;
margin: 0;
padding: 20px;
display: flex;
justify-content: center;
align-items: center;
min-height: 100vh;
}
.container {
background: white;
padding: 40px;
border-radius: 12px;
box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
width: 100%;
max-width: 400px;
}
h1 {
font-size: 24px;
margin: 0 0 8px 0;
color: #333;
}
.intro-text {
font-size: 14px;
color: #666;
margin-bottom: 24px;
}
.form-group {
display: flex;
flex-direction: column;
gap: 12px;
margin-bottom: 20px;
}
label {
font-size: 14px;
font-weight: 500;
color: #333;
}
.otp-input {
font-size: 32px;
letter-spacing: 8px;
text-align: center;
padding: 16px;
border: 2px solid #ddd;
border-radius: 8px;
font-family: 'Monaco', 'Courier New', monospace;
transition: all 0.2s;
}
.otp-input:focus {
outline: none;
border-color: #007AFF;
box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.1);
}
.otp-input:invalid:not(:placeholder-shown) {
border-color: #FF3B30;
}
.hint-text {
font-size: 12px;
color: #666;
margin: 0;
}
.error-message {
color: #FF3B30;
font-size: 13px;
margin-top: 8px;
display: none;
}
.success-message {
color: #34C759;
font-size: 13px;
margin-top: 8px;
display: none;
}
.submit-btn {
padding: 12px 24px;
background: #007AFF;
color: white;
border: none;
border-radius: 8px;
font-size: 16px;
font-weight: 600;
cursor: pointer;
width: 100%;
transition: background 0.2s;
}
.submit-btn:hover {
background: #0051D5;
}
.submit-btn:disabled {
background: #ccc;
cursor: not-allowed;
}
</style>
</head>
<body>
<div class="container">
<h1>Verify Your Account</h1>
<p class="intro-text">
We sent a 6-digit code to your authenticator app. Paste it here or type it in.
</p>
<form id="otp-form">
<div class="form-group">
<label for="otp-input">
One-time passcode
</label>
<input
id="otp-input"
type="text"
inputmode="numeric"
autocomplete="one-time-code"
maxlength="6"
pattern="[0-9]{6}"
required
class="otp-input"
placeholder="000000"
/>
<p class="hint-text">
6 digits. Paste works. Password managers work.
</p>
<p class="error-message" id="error-msg"></p>
<p class="success-message" id="success-msg"></p>
</div>
<button type="submit" class="submit-btn">Verify Code</button>
</form>
</div>
<script>
const form = document.getElementById('otp-form');
const input = document.getElementById('otp-input');
const errorMsg = document.getElementById('error-msg');
const successMsg = document.getElementById('success-msg');
const submitBtn = form.querySelector('button');
form.addEventListener('submit', async (e) => {
e.preventDefault();
errorMsg.style.display = 'none';
successMsg.style.display = 'none';
const code = input.value.trim();
if (!code.match(/^[0-9]{6}$/)) {
errorMsg.textContent = 'Enter exactly 6 digits.';
errorMsg.style.display = 'block';
return;
}
submitBtn.disabled = true;
try {
const response = await fetch('/verify-otp', {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({ code })
});
if (response.ok) {
successMsg.textContent = 'Code verified. Redirecting...';
successMsg.style.display = 'block';
setTimeout(() => window.location.href = '/dashboard', 1500);
} else {
errorMsg.textContent = 'Invalid code. Try again.';
errorMsg.style.display = 'block';
input.value = '';
input.focus();
}
} catch (err) {
errorMsg.textContent = 'Network error. Please try again.';
errorMsg.style.display = 'block';
} finally {
submitBtn.disabled = false;
}
});
input.focus();
</script>
</body>
</html>
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