Merchant Security Updates: Learn how security upgrades may affect your integration at the 2017-2018 Merchant Security Roadmap Microsite
Upcoming Change to PayPal Subscriptions Beginning March 15, 2018, changes will be made to the way PayPal creates, manages, and displays subscriptions. Click here for an FAQ related to the upcoming changes being made to PayPal subscriptions.
Hi, the code is from an hosted button which means the code is hosted on a PayPal server and visible only to the account that created the button. That's why you only see few lines and not the usual code lines of an html button.
Just to add, if you're referring to the "email" tab which contains the URL button code, then this may not be available in some cases, e.g. where the button contains a text field, drop down or some other form of user input.