This is not what I mean. Flex and Grid are simply defining layout in terms properties on an individual element, and what it expects its children to do. Still no

This is not what I mean. Flex and Grid are simply defining layout in terms properties on an individual element, and what it expects its children to do. Still no way to represent relationships between elements (except the implied relationship between siblings, only indirectly accessible by setting properties on their parent, or setting properties on a child that affect the implicit relationship between it and its parent and or siblings, such as, eg, "margin") These things at least make certain things that were simply impossible to do before now possible, but they're doing it in a bolted on, unnatural, overcomplicated way. And still there are things that are only possible by rearranging the HTML to accomodate the implied relationships these layout systems expect.