Yes, I ran into this bug as well. Another small bug, slide 13: "...while we've got these three fixed-width items here, take a minute or two to explore the cont

Yes, I ran into this bug as well. Another small bug, slide 13: "...while we've got these three fixed-width items here, take a minute or two to explore the container styling options at the top of the page." The container styling options are in the middle-right of the page, at least on my desktop browser.