function custom_newsletter_box() { echo "<div class=’hentry newsletter-box’> <h2>Join our Newsletter</h2> <p>Add some more text here to convince people that signing up is worth it.</p> <form> <input type=’text’ class=’newsletter-email’ value=” placeholder=’Email Address’ /> <input type=’submit’ class=’newsletter-submit’ value=’JOIN NOW!’ /> </form> </div>"; } add_action( "cannabiz_single_after", "custom_newsletter_box" );