I'd like to know more too. I constantly feel like I am just blundering my way through CSS until it works or I get the CSS framework of the day to work for me. I

I'd like to know more too. I constantly feel like I am just blundering my way through CSS until it works or I get the CSS framework of the day to work for me. I'm at the level where I use LESS to compile to CSS, and I still feel like I'm just like a day 0 amateur