Seems this is a browser bug (but Edge stable and Safari TP both have the same issue) or maybe I don't understand `position-area` right, but if you use CSSOM to set multiple values to `position-area` with one of them being `span-all`, `span-all` would be ignored/removed. #CSS #CSSOM #CSSAnchorPositioning

https://codepen.io/marchbox/pres/wBBryoz