In Confluence, adding or editing content on pages is easy.
If you have rights to edit a page, you'll see an "edit" link toward the upper right. This opens an editor tool, which works basically like a word processor. You can add and format text, add images, simple text links, or video. You can even create nifty clickable "buttons" by adding links to images, like this one:
Within the editor, you'll see a toolset up at the top that looks like this:
Of course, you recognize the word processing tools. "Link" and Table" buttons allow you to create tables, and "Insert" contains dozens of other options for content visibility and organization. For example, if you click the "files" button, you can add images to your content, just like the one below.
If you click on the image, Confluence delivers a full-size version of that image in a separate window. When viewing the full-sized image, you can return to this screen by clicking the black circle with the "X," in the upper righthand corner of the image.
Adding video is even easier! If you copy the URL or web address for a YouTube-hosted video into a Confluence page editor, Confluence does the rest, creating an embedded video, ready to play. If the video appears too small, click the "Youtube" logo in the bottom righthand corner, to watch it at Youtube, where you can expand it to full screen.
Take a look at this how-to video for creating content in Confluence: