Informal description of one or more features of a software system| en.wikipedia.org
The await operator is used to wait for a Promise and get its fulfillment value. It can only be used inside an async function or at the top level of a module.| MDN Web Docs
The localStorage read-only property of the window interface allows you to access a Storage object for the Document's origin; the stored data is saved across browser sessions.| MDN Web Docs
1. Introduction| drafts.csswg.org
1 Language Power and Information Reuse| www.w3.org