I think you need to learn by heart what each of the 5 position values means. After that, the tricky part is understanding what the width/height/top/bottom/left/

I think you need to learn by heart what each of the 5 position values means. After that, the tricky part is understanding what the width/height/top/bottom/left/right values are relative to i.e. the containing block and how that works: https://developer.mozilla.org/en-US/docs/Web/CSS/Containing_block#identifying_the_containing_block https://developer.mozilla.org/en-US/docs/Web/CSS/Containing_...