Customize Template on Teachable.com

I'm starting an Animation School on Teachable.com. I would like to display Videos instead of a static background image on the landing page and on the course pages. These videos will display the profession animation work of the course authors. Here is an example of what I'm looking for: [login to view URL] On the above example, on the landing page you see a video playing in the background under the words: BRIDGING THE GAP BETWEEN COMPANIES & CREATIVES. This is what I would like on my Teachable landing page, except with different words. Also, I would need to attribute the work of the animator. You'll see in the example above that it states the title of the work and the artists name at the bottom right corner of the video. These videos will need to be streamed from vimeo or youtube. The streamed video would need to be looping. The first 10 seconds and last 10 seconds will need to be cut off so as not to display titles and credits in the video. On the front landing page it will need to cycle through all the course authors professional animation work. But on each course page the video will need to loop through only the course authors professional animation work. The work will need to be done in Teachables power editor using HTML/Liquid and CSS.