I believe there are two things everybody should know about HTML/CSS that could help you immensely. 1. Know that everything is a box that wants to float up. Lea

I believe there are two things everybody should know about HTML/CSS that could help you immensely. 1. Know that everything is a box that wants to float up. Learn about `display` and `position`. 2. Know about how things are measured. I think this is what causes the most troubles. You think something is 50% so it should fit, but it doesn't. Almost all of these problems go away with `*{ box-sizing: border-box}` but you should learn about this.