What do you mean by "semantic" markup? The markup in the file upload widget you describe is rather generic (label, button, p or span, presumably div) but almos

What do you mean by "semantic" markup? The markup in the file upload widget you describe is rather generic (label, button, p or span, presumably div) but almost completely meaningful (caption, button text, file name, widget/drag and drop target), not a div soup; I don't see how you could improve it.