Awesome, just saw the reply. Thanks both debugging/answering! The answer makes sense. Can’t use anchor() to do height calculations, that’s good to know. Height: auto.. it’s so simple I didn’t even think of it.

Haha, yeah I’ve spend a couple of hours looking through articles and specs trying to figure out why subtracting a null prop somehow makes it work. Both our cases should hypothetically work. I filed a Chromium but report. Not sure if it’s the right place issues.chromium.org/issues/39958...

Legend! Thanks for the quick response. Way 1 works great, but way 2 doesn't work for me in Chrome 135. Gives me the same "invalid property value" as my previous example. So what's going on there?