> I can't explain why it took CSS such a long time It is weird to look back on but the web platform essentially went through a dark ages for a while. You could

> I can't explain why it took CSS such a long time It is weird to look back on but the web platform essentially went through a dark ages for a while. You could say the same about why it took us so long to get to ES6 JS, too. The standards bodies were frozen in ice (and I don’t quite know why either), everyone was debating HTML5 vs XHTML and somehow the rest of the platform floundered for years.