I'm not sure I follow. You mean the `.static:after` selector? The `:after` part is superfluous, except for the fact that I like the idea of using `content` properties to output a text string to easily "read" the original media query in the compiled CSS. And generated content is only allowed on pseudo-elements.

But perhaps a better illustration of the concept is to create three files, `_styles.scss`, `responsive.scss` and `static.scss`, where the last two `@import` the former, and set the requisite variables to output media queries and rasterized output, respectively?