css
body {
  font-family: 'Arial', sans-serif;
  background-color: #f4f4f9;
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.contact-form-wrapper {
  border-radius: 8px;
  background-color: #fff;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  width: 350px;
  padding: 20px;
  position: relative;
}

.contact-info {
  text-align: center;
  margin-bottom: 20px;
}

.contact-info h2 {
  margin: 0;
  color: #37474F;
}

.contact-info p {
  margin: 5px 0;
  color: #607D8B;
}

.contact-info img {
  width: 100px;
  border-radius: 50%;
}

.contact-form {
  display: flex;
  flex-direction: column;
}

.contact-form input,
.contact-form textarea {
  border: none;
  border-radius: 4px;
  background-color: #f0f0f5;
  padding: 10px;
  margin-bottom: 10px;
  transition: background-color 0.3s ease;
}

.contact-form input:focus,
.contact-form textarea:focus {
  background-color: #e7edf3;
}

.contact-form button {
  background-color: #007BFF;
  color: white;
  border: none;
  border-radius: 4px;
  padding: 10px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.contact-form button:hover {
  background-color: #0056b3;
}

.success-message {
  display: none;
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(255, 255, 255, 0.9);
  color: #4CAF50;
  font-size: 18px;
  display: flex;
  justify-content: center;
  align-items: center;
  border-radius: 8px;
  cursor: pointer;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.success-message.show {
  display: flex;
  animation: fadeIn 0.5s ease-in-out;
}



<div class="contact-form-wrapper">
  <div class="contact-info">
    <img src="images/kalvarentiox-logo.webp" alt="KALVARENTIOX logo">
    <h2>KALVARENTIOX</h2>
    <p>5670 W. CHANDLER BOULEVARD, SUITE 100</p>
    <p>CHANDLER, AZ, 85226, US</p>
    <p>Phone: 480-347-1111</p>
  </div>
  <form class="contact-form">
    <input type="text" placeholder="Your Name" required>
    <input type="email" placeholder="Your Email" required>
    <textarea rows="4" placeholder="Your Message" required></textarea>
    <button type="submit">Send Message</button>
  </form>
  <div class="success-message">Thank you for contacting us!</div>
</div>

<script>
  document.querySelector('.contact-form').addEventListener('submit', function (e) {
    e.preventDefault();
    setTimeout(() => {
      document.querySelector('.success-message').classList.add('show');
    }, 2000);
  });

  document.querySelector('.success-message').addEventListener('click', function () {
    this.classList.remove('show');
  });
</script>