Yay for Sass! 

Returns after commas, and added spaces after each selector. (it's Sass, let them breath since they're going to get compiled anyway)
The proper way to write sass:
```scss
// These mixins should be defined
@include box-shadow(inset 0 1px 0 transparentize($white, 0.5),
                    inset 0 15px 17px transparentize($white, 0.5),
                    inset 0 -5px 12px transparentize($black, 9.95));
@include text-shadow: 0 1px 0 transparentize($white, 0.2);
etc.
```