How can I override Materialize:materialize styles?

I’m using the materialize:materialize plugin along with the SCSS plugin. I’m trying to override some of the styles that are built into the package, but the package styles are winning out. I’m using Chrome Developer Tools to determine the selector of the package styles and using the same selector in my custom scss file.

My project is simple at this point - just a main.html and main.scss. Both of these are in /client. That’s it, no server side code yet as this is a a wireframe.

Thank you in advance!