Check out example codes for "static class can have non static member in c#". It will help you in understanding the concepts better.
Code Example 1
In general, static means “associated with the class, not an instance”. // Search c# static review for more detail
Code Example 2
Static class can't contain non-static members because by definition it can't be instantiated so there's no possibility to use these members. However, static members in non-static class can be used without having class instance - a bit different scenario,
Learn ReactJs, React Native from akashmittal.com