When citing online resources student will likely be citing a webpage. This is true for anything online you find outside of the library databases. Always remember to cite the webpage you are referring to (more specific, where your cited information "lives") and NOT the website (more general, houses the webpage you're citing).
Author if present. "Title of Webpage." Title of Website, Publisher/Publishing Organization, webpageURL.
“Campus Engagement.” SMCCCD Sustainability, San Mateo County Community College District, sites.google.com/my.smccd.edu/smcccdsustainability/sustainability-programs/campus-engagement.