* Advertisements often appear over videos. If so, read the on-screen instructions or tap/click where indicated or the small X to stop the ad.
* The red line along the bottom of the video indicates how many minutes of the video have elapsed, eg 0:45 / 3:28. You can click or tap on the red line to jump to any time you want.
* To "pause" a video, tap or click on the pause button: ... || ... which is just below the video on the left, or press the space bar on the keyboard.
Beginners' Computing: Documents and Videos about E-mail
Video from Lifehacker: How to Get Started with Gmail (9 minutes).
Video from Anson Alexander: really fast, comprehensive 13-minute video: Gmail tutorial 2012; use of the Pause button and the red timer line recommended!