When comparing Cirrus vs MUI CSS, the Slant community recommends MUI CSS for most people. In the question“What are the best lightweight responsive CSS frameworks?” MUI CSS is ranked 4th while Cirrus is ranked 6th. The most important reason people chose MUI CSS is:
Simple animations without too much fanciness keep the performance high and size small.
Ranked in these QuestionsQuestion Ranking
Pros
Pro Supports Flexbox and CSS Grid
Supports both Flexbox and CSS grid making it a great modern choice for designing web apps.
Pro CSS Only
No additional JS/jQuery required to use.
Pro Mobile Responsive
Extremely responsive and supports many smaller screens.
Pro Open Source
Open source and quite actively maintained on Github.
Pro Lightweight
Much smaller than Bootstrap with just as much flexibility.
Pro Fast
Simple animations without too much fanciness keep the performance high and size small.
Pro Lightweight
11KB minified and gzipped
Pro No external dependencies
Pro Grid system - the same as Bootstrap
12-column grid
Pro WebComponents library
Pro HTML Email library
Pro React library
Pro Customizable using SASS
The MUI CSS can be easily customized by using the SASS files available on GitHub and via Bower. Customize breakpoints, font-settings and use Material Design colors.