The overflowing scroll-state query has the values none | top | right | bottom | left | block-start | inline-start | block-end | inline-end , which indicate each of the sides of the box. But sometimes people want to know about an axis, not one side of it specifically.

Would it make sense to add x/y/inline/block values to this query as well? They would be true if there is scrollable overflow in either direction along the named axis.