resize textbox html

  
    <form 
    action="/action_page.php">

  <label for="fname">First name:</label>
  <input type="text" id="fname" 
    name="fname" size="50"><br><br>
  <label for="pin">PIN:</label>
  
    <input type="text" id="pin" name="pin" maxlength="4" size="4"><br><br>
  
    <input type="submit" value="Submit">

    </form>