What we solved? Layout? Still need to go back a re read some shady aspects of flex and grid. Sticky positioning is one of the most useful features ever; yet if for any any reason doesn’t work it’s very hard or almost impossible to debug and understand why(does any parent up the tree have any overflow?), and good luck finding any good documentation explaining corner cases. Without dev tools and a lot of wasted clicks it’s impossible to debug css from source code alone, you have to inspect that element at runtime. Most native inputs still have very limited styling capabilities(please don’t tell me it’s a good thing), we waited years for native modals and popovers. Last time I checked can’t still animate from display none to block with height. I can go on for days, my point is how did we become so accustomed to all the problems css have and lost any bit of criticism?