> So not only are you unnecessarily adding to your tools, but also unnecessarily adding to your build steps, which costs time every time you make any sort of vi

> So not only are you unnecessarily adding to your tools, but also unnecessarily adding to your build steps, which costs time every time you make any sort of visual change. Most frameworks nowadays ship with Sass/Less built-in, or at the very least make it trivial to bolt it on. Further, most frameworks nowadays fully support the ability to automatically rebuild stylesheets when regenerating the HTML, in which case it's quite literally: change CSS, reload, change CSS, reload, etc. The build times are negligible (especially if I'm using Erlang/Elixir or C# or something else that needs compilation on changes anyway). Also, since I'm in the habit of keeping the HTML I write or generate concerned solely with describing the content rather than the appearance thereof, there's rarely (if ever) a separate "change HTML" step there; the HTML (or the templates to generate it) is already written alongside the content, and it's just a matter of adding enough CSS to make it look decent. Importantly, since the HTML makes no assumptions about its appearance, it's straightforward to define different stylesheets for different contexts (whether interactive v. print, or reusing a given page on multiple sites/applications with very different styles, or what have you).