Instructor: we have two buttons. One is written using Sass, and the other one is using CSS in JS. Let's have a look at this button size mixin. We have four arguments, padding-y, padding-x, font size, and border radius. Often, it's hard to remember in which order they have to be used.
Instead, it has objects. Objects can be used exactly the same way as named arguments in Sass. Now we are going to convert these arguments to a named arguments object. Now you can see a single object instead of arguments list. Object declaration starts with an opening curly brace and ends with a closing curly brace.