I utterly loathe using em units. Rem is better, but px are nice and locked down. Em's are neat in theory, but reasoning about them after the CSS has solidified

I utterly loathe using em units. Rem is better, but px are nice and locked down. Em's are neat in theory, but reasoning about them after the CSS has solidified is so tedious. Em units begin to feel like a weather app telling you today's forecast as a multiplier of yesterday's temperature. Today is going to be 1.1! [uninstall]