Sighn up now.....

 <div class="newsletter-widget">

  <h3>Get Free Updates</h3>

  <p>Subscribe to our newsletter for new posts!</p>

  <form action="YOUR_MAILCHIMP_FORM_ACTION_URL" method="post" target="_blank">

    <input type="email" name="EMAIL" placeholder="Enter your email" required>

    <button type="submit">Subscribe</button>

  </form>

</style>

<style>

.newsletter-widget {

  padding: 20px;

  background: #f5f5f5;

  border-radius: 10px;

  margin: 15px 0;

}

.newsletter-widget input {

  width: 100%;

  padding: 8px;

  margin: 5px 0;

}

.newsletter-widget button {

  background: #ff6b6b;

  color: white;

  border: none;

  padding: 8px 15px;

  margin-top: 10px;

  cursor: pointer;

}

</style>