On October 10, 1994 Håkon Wium Lie published Cascading HTML style sheets — a proposal
Håkon Wium Lie, today CEO of Opera, interviewed him on the same website of Dev.Opera about this ephemeris and tells quite funny and interesting things for any layout designer and frontender that is precious
For example, how the idea of CSS (Cascading Style Sheet) occurred to him when he came from the world of design "desktop" and find something as bland, gray and functional as that original HTML.
Read | Lan interview with Wium Lie.
Read | original post Cascading HTML style sheets — a proposal 10 Oct 1994