Would you like to use standard Paypal Widgets rather than our Payment Widget (which requires a Braintree account)? 
If so, it is easier than you think, and here are the steps...
1) Use your Paypal account to generate a payment button
2) You'll be given the embed code (Javascript) to add to your website
3) Use a javascript widget to add the code to your site
4) When pasting in the code given by Paypal, add this before the code they give you:    
<form action=""></form>
5) That's it!