Simon Willison’s Weblog

Why weren’t the features of Sass originally built into CSS?

My answer to Why weren’t the features of Sass originally built into CSS? on Quora

This is not a straight-forward issue: CSS has a very long, complicated history. A good starting point for understanding the reluctance of the CSS working group to add variables/constants etc to CSS is this essay by Bert Bos of the W3C (entitled Why “variables” in CSS are harmful) http://www.w3.org/People/Bos/CSS...