This used Bootstrap and was based on this course. This site demonstrates Bootstrap features such Navbars, Dropdown Menus, and Forms.
I think this site might be my formula for reviewing, learning, and mastering computer science concepts. I gained a great overview of Bootstrap by building with the sample code and adding short explanations. The next step will be lots of building and applying what I learned these last two days. But I think the formula will be to gain a quick overview by building and sharing, and then diving into the details with more building and applying.