We also talked a lot about floats and how to use them to create a multicolumn layout, as we did on our home page:
We talked about the problems created by floats, such as collapse, and other content flowing around the float. We also discussed different ways, such as using the clear-fix, to avoid these problems. To learn more about floats, I'm going to point you right back to Sitepoint's A to Z CSS, and the short six-minute video (https://www.sitepoint.com/atoz-css-screencast-float-and-clear/) that covers the basics of floats and how to get used to their quirks.
