When comparing Cirrus vs Skeleton, the Slant community recommends Skeleton for most people. In the question“What is the best CSS framework?” Skeleton is ranked 6th while Cirrus is ranked 26th.
Ranked in these QuestionsQuestion Ranking
Pro CSS Only
No additional JS/jQuery required to use.
Much smaller than Bootstrap with just as much flexibility.
Pro Mobile Responsive
Extremely responsive and supports many smaller screens.
Pro Open Source
Open source and quite actively maintained on Github.
Pro Supports Flexbox and CSS Grid
Supports both Flexbox and CSS grid making it a great modern choice for designing web apps.
Pro Responsive grid
Pro Style agnostic
Pro Vanilla CSS
No bells and whistles for Skeleton, it's just CSS.
Pro Media queries
Con Not maintained anymore
No active development for two years.