CSS Modules
A CSS Module is a CSS file in which all class names and animation names are scoped locally by default.
By using CSS Modules you can have more specific control over your components. If
you have ever felt yourself using really long classnames (or BEM
syntax), you
have an idea of why this might be useful.
I have not personally used CSS Modules much besides going through the Gatsby examples. If this approach interests you, I encourage you to check out the CSS Modules Gatsby documentation and the CSS Modules Github Page