If you are using the standalone version of Zotero it is still easy to save web pages.
The Zotero Connector that works with your web browser allows you to save "snapshots" of web pages for later reference. To do this follow these steps:
Get Zotero Support from the Oxy Library through live, remote 1:1 consultation
Request a 45 minute Zotero Workshop for a class by locating your subject librarian/specialist here:
https://www.oxy.edu/academics/library/research-help