Add stacking contexts (aka "why doesn't my z-index work") and margin collapsing to that list. Both have extremely long and convoluted logic for when they apply

Add stacking contexts (aka "why doesn't my z-index work") and margin collapsing to that list. Both have extremely long and convoluted logic for when they apply and when they don't. https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Positioning/Understanding_z_index/The_stacking_context https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Positio... https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Box_Model/Mastering_margin_collapsing https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Box_Mod...