That's not good enough. I want to look at a tag and immediately see how it's styled. No cascading or hidden/indirect styling. It should be all there, completely

That's not good enough. I want to look at a tag and immediately see how it's styled. No cascading or hidden/indirect styling. It should be all there, completely isolated from the rest. In fact, I should be able to copy/paste just the HTML (or component) into a completely different application and it should remain exactly the same.