Media Elements (Video/Audio)
Instructions: Test controlling HTML5 video and audio elements.
- Use the custom "Play" and "Pause" buttons to control the video.
- Use the "Mute" and "Unmute" buttons.
- Check the output log to see the events fired by the video element.
Validation: Your script should be able to click the controls and then verify the `paused` and `muted` properties of the video element, as well as read the event log.