When comparing Ghast vs Cirrus, the Slant community recommends Cirrus for most people. In the question“What are the best lightweight responsive CSS frameworks?” Cirrus is ranked 6th while Ghast is ranked 12th. The most important reason people chose Cirrus is:
Supports both Flexbox and CSS grid making it a great modern choice for designing web apps.
Ranked in these QuestionsQuestion Ranking
Pros
Pro Minimal
Provides a minimal set of components that are easy to modify and understand.
Pro Sass
Framework is written entirely in Sass
Pro Flexbox
The grid system makes uses of the flexbox property
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.
Cons
Con Still in development
Ghast is still in development at the moment and is rapidly changing.