c.html

<!DOCTYPE html>
<html lang="en" dir="ltr">
  <head>
   
    <meta charset="utf-8">
    <title></title>
    <link rel="stylesheet" href="css/cf.css">
    <meta name="viewport" content="width=device-width, initial-scale=1">
  </head>
  <body>

<div class="contact-section">

  <h1>Contact Us</h1>
  <div class="border"></div>
  <form name="m" class="contact-form" action="index.html" method="post" >
    <input type="text" class="contact-form-text" placeholder="Your name" required>
    <input type="email" class="contact-form-text" name="name" placeholder="Your email" required>
    <input type="text" class="contact-form-text" placeholder="Your age (optional)">
    <textarea class="contact-form-text" placeholder="Your message" required=""></textarea>
    <input type="submit" class="contact-form-btn" onclick="alert('Your query has been submitted!!!')" value="Send">
  </form>
</div>


  </body>
</html>