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Modern Credit Card Checkout JS

Upgrade your payment page with this clean checkout form. We formatted the card inputs automatically with JavaScript, which gives your buyers complete confidence.

#css

#javascript

#form

#checkout

#credit card

#payment

#ecommerce

#modern ui

/HTML *CSS ()JS Output Live Updates

*, *::before, *::after {
  box-sizing: border-box;
}

body {
  font-family: system-ui, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
  background: #f3f4f6;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  margin: 0;
  padding: 20px;
}

.checkout-layout {
  background: #ffffff;
  padding: 40px;
  border-radius: 16px;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  width: 100%;
  max-width: 450px;
}

.payment-form h3 {
  margin-top: 0;
  margin-bottom: 24px;
  color: #111827;
  font-size: 1.25rem;
}

.input-block {
  margin-bottom: 20px;
  width: 100%;
}

.input-block label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: #374151;
  margin-bottom: 8px;
}

.input-field {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid #d1d5db;
  border-radius: 8px;
  font-size: 1rem;
  outline: none;
  transition: border-color 0.2s;
  font-family: inherit;
}

.input-field:focus {
  border-color: #3b82f6;
}

.card-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.card-input-wrapper svg {
  position: absolute;
  left: 16px;
}

.card-field {
  padding-left: 48px;
  font-variant-numeric: tabular-nums;
  letter-spacing: 1px;
}

.flex-row {
  display: flex;
  gap: 16px;
}

.pay-btn {
  width: 100%;
  background: #111827;
  color: #ffffff;
  border: none;
  padding: 16px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1.125rem;
  cursor: pointer;
  margin-top: 10px;
  transition: background 0.2s;
}

.pay-btn:hover {
  background: #374151;
}

<div class="checkout-layout">
  <div class="payment-form">
    <h3>Payment Details</h3>
    
    <div class="input-block">
      <label>Cardholder Name</label>
      <input type="text" class="input-field" placeholder="John Doe">
    </div>
    
    <div class="input-block">
      <label>Card Number</label>
      <div class="card-input-wrapper">
        <svg viewBox="0 0 24 24" width="20" height="20" fill="none" stroke="#9ca3af" stroke-width="2">
          <rect x="1" y="4" width="22" height="16" rx="2" ry="2"></rect>
          <line x1="1" y1="10" x2="23" y2="10"></line>
        </svg>
        <input type="text" id="cc-number" class="input-field card-field" placeholder="0000 0000 0000 0000" maxlength="19">
      </div>
    </div>
    
    <div class="flex-row">
      <div class="input-block">
        <label>Expiry Date</label>
        <input type="text" id="cc-exp" class="input-field" placeholder="MM/YY" maxlength="5">
      </div>
      <div class="input-block">
        <label>CVV</label>
        <input type="password" class="input-field" placeholder="123" maxlength="4">
      </div>
    </div>
    
    <button class="pay-btn">Pay $149.00</button>
  </div>
</div>

Modern Credit Card Checkout JS

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