Format: When you are working in a word processing document you are able to change the shape, size and organization of text and other elements on a page. On the toolbar menu, you can locate Format and all of the options.
Styles: Styles is a master page layout used in document creation systems such as word processing to store margins, tabs, fonts, headers, footers.
Video controls: Video controls are play, pause, full-screen, scroll, volume, cc (closed caption), share and more. (video controls diagram)
Drop-down menu: This menu drops down to show you more options when you move your mouse over it or click on it. An example is the 21 Things menu at the top.
Web Content Block: It is a block of information that can be expanded to show more information, or contracted to hide it.
Download a file: To download a file is to copy a file (image, video, music) from one computer location to a different one. An example is to download a document from one of the 21 Things webpages to your own device so you can use or edit it.