I was following along but after the first few code snippets it it says: > You can see how nicely the div elements position itself horizontally. But if you noti

I was following along but after the first few code snippets it it says: > You can see how nicely the div elements position itself horizontally. But if you notice, it doesn’t entirely take up all the space within the container. There’s a gap at the end. There's no example outputs or screen shots or preview panes or anything so no, I don't "see". I guess I'm supposed to be copying this code by hand into a CodePen or a sample HTML page but that wasn't made clear at the beginning. I started reading expecting an article explaining something but it turns out that it's a half-tutorial. Luckily, people have posted a bunch of great links in these comment so I'm going to go and read those instead.