Cascading Style Sheets were introduced 13 years ago, and the widely adopted CSS 2.1 standard has existed for 11 years now. When we look at websites that were created 11 years ago, it’s clear that we are a thousand miles away from that era. It is quite remarkable how much Web development has evolved over the years, in a way we would never have imagined then. So why is it that, when it comes to CSS,