React Class and styles - Class overwrites css

JavaScript
1

Hy,

I have following code

css {
    gridColumnStart = "1".unsafeCast<GridColumnStart>()
    gridColumnEnd = "4".unsafeCast<GridColumnEnd>()
}
className = ClassName("link")

I need the Class and the different style.

The problem now is, that link overwrite my css. Whats the problem here?

Br
Mike