Instructor: As you can see, we have two buttons. One is a SASS button, which is already implemented, and it is blue. The other one is CSS-in-JS button, and it is currently unstyled. Now, let's implement a button using CSS-in-JS, but let's have a look first at the SASS button.
Here, we have our selector. Here, we have our CSS rule declaration. As you can see, we use Tor and Tor-base in order to use the variables. This is called interpolation. Now, as we have defined this CSS-in-JS button, we have to render it. As you can see, we can render it really simple.
What do we do here? First thing, we create a style tag. Then, we insert this style tag into the head of the document. Then, we use text content setter in order to render our styles.