Change styling on hover semantic-ui-react components

Question

if I set up a className for certain components like

and in my

Answer 1

Because you didn't provide more code, hard to guess what overriding style you try to change. Try to add !importanant rule to this style.

.Change:hover {
  background-color: black !importanant;
}

To avoid !important, which is not always a good solution, add a more specific CSS selector, for exaple Segment.Change:hover.

UPDATE: Try to remove color='blue' from the template and check if will work with and without !important rule.