I've posted about this before, and, at the time, I realize that Stef was too busy to look into it. But, I'm reviewing the material now, and find it a bit annoying.
The Beginners CSS 2015 course is missing the HTML code for Lessons 6.5 and 6.6.
This is pretty important material, as it covers well the use of float, toClear, visibility and several other aspects of CSS coding necessary to bring a web page up to the modern standards.
I would hope, that this matter can be looked into, since not having the code to this material is denying a big chunk of the concepts necessary in designing web pages.
-Mike