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Re:Stepping Away from Sass by psychometry on Thursday April 25, 2019 @11:15PM (#19754547)
There's no performance impact. Styles are precompiled locally before deployment.
Re:Stepping Away from Sass by namelosw on Thursday April 25, 2019 @11:20PM (#19754568)
There is, at runtime browser needs to do extra matching.

https://stackoverflow.com/questions/13829959/nested-selector...

It's about Less but the same rule applies to CSS and Sass.

Re:Stepping Away from Sass by steveax on Friday April 26, 2019 @02:02AM (#19755169)
Note the date on that. It’s my understanding that with modern browsers, except in pathological cases, selector performance is pretty much a non issue.