[jack_pp]

Flexbox has made stuff a lot easier for me. I had this bookmarked while learning : https://css-tricks.com/snippets/css/a-guide-to-flexbox/

[kaladin-jasnah]

I second this comment. The above tutorial and link is a very good reference, and I believe that flexbox these days is really the only thing you'd need to learn to position things with CSS. And other than positioning, I feel that CSS for styling is much simpler and straightforward.