Vingt ans de CSS

On December 17, 1996, W3C published the first standard for CSS. And thus from December 17, 2016 until one year later, CSS is 20 years old.
W3C, 20 Years of CSS

Le CSS a vingt ans ! Le W3C a également publié une petite histoire du CSS : https://www.w3.org/Style/CSS20/history.html