Finally, finished my most recent article (and published a package): https://kizu.dev/preview-mixin/ — a lot of overcomplicated CSS, but one that makes it much easier to debug various dynamic values. For now, it is mostly for displaying them as text when possible, but I have a few ideas about some other visualizations. I already used it for a few experiments — and seeing the values of what you're working on in real time really helps.

@Roma Komarov This is super interesting. I've encountered this problem several times and more than once I resorted to drawing the element, then using JS to get its size. I'll have your mixin in mind next time this problem resurfaces in my radar. BTW, the visual style of your article (and your homepage in general) is outright gorgeous. It feels like looking at art!