title: paypal payment integration to my website
body: <p>I see this demo example and I am a little bit confused.
  In this demo website by paypal you can pay by visa enter digits and cvc code without redirecting to paypal.
  <a href="https://demo.paypal.com/us/demo/navigation?merchant=bigbox&amp;page=merchantCreditCard" rel="nofollow">https://demo.paypal.com/us/demo/navigation?merchant=bigbox&amp;page=merchantCreditCard</a></p>
  
  <p>Before that I thought that you can only redirect user to paypal and make him enter his card numbers there(so he know he can trust paypal and not some website created 2 weeks ago))
  So If I do this direct paypament with inputing visa card number on my website will I need to pass some verification?</p>
  
  <p>Is it dificult to integrate it?</p>