<form>
 <input type="text" placeholder="Your Name Here" class="form-control mb-3">

 <input type="password" placeholder="Your Password Here" class="form-control mb-3">

  <input type="email" placeholder="Your Email Here" class="form-control mb-3"> 
 
  <input type="submit" value="submit" class="btn btn-primary btn-large">
    
</form>

External CSS

  1. https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.5.0/css/bootstrap.min.css

External JavaScript

This Pen doesn't use any external JavaScript resources.