Your example is a bit overkill for a basic task. You can simply do the following: jsfiddle.net/4k9aj0zc/1/ .. you don't really need to make it complex with the empty var trick.
That is a nice approach, but it's almost similar to directly setting the property like background-color: ... in the media query.
background-color: ...
This is a basic demo but I added the complexity for understanding. I don't want people wondering "where did this undefined variable come from" etc.
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Your example is a bit overkill for a basic task. You can simply do the following: jsfiddle.net/4k9aj0zc/1/ .. you don't really need to make it complex with the empty var trick.
That is a nice approach, but it's almost similar to directly setting the property like
background-color: ...in the media query.This is a basic demo but I added the complexity for understanding. I don't want people wondering "where did this undefined variable come from" etc.