The 'flex-order' property “reorders” flexbox items, allowing them to display independently of their source order.
Does this reordering affect painting order? That is, given the following markup:
If the <b> child overlaps the <a> child, should it paint above (that is, according to its source order) or below (according to its display order)?
A. 'flex-order' affects the painting order - items moved earlier paint underneath items moved later.
B. 'flex-order' has no effect on painting order - the original source order determines whether things are painted above/below others.
Resolved on A.