Add blank lines in print css and fix block comments.

[Jeroen-Matthijssens]

css files leave a blank line in between every block. But in _print.css this is not the case, which makes is less readable. The block comments in this file have extra whitespace at the beginning of consecutive lines which has been removed.

[coliff]

Hey there - thanks for the PR! You're right - there should be a blank line between each rule before each rule - but I don't think a blank line is needed on line 8 (before the first rule) or 75 (after the last rule).
could you update that and run the build script so the dist is updated?

[Jeroen-Matthijssens]

I don't know what the policies are about updating the pull request but I figured that just force pushing seems the cleanest.

[coliff]

thanks for updating that - the dist folder needs to be updated too though.

[Jeroen-Matthijssens]

Apparently gulp 3 and node 12 don't go together. I had to resort to some docker trickery in order to run the build process. But it is done. :)

[coliff]

Apparently gulp 3 and node 12 don't go together.

Interesting! Maybe it's time we looked to update the script to Gulp 4.

[coliff]

LGTM 👍

[Jeroen-Matthijssens]

I got a wierd error and ended up on [1], I did not look into it further, but using node 11.15.0 did just work.

[1] https://stackoverflow.com/questions/55921442/how-to-fix-referenceerror-primordials-is-not-defined-in-node

[roblarsen]

Great! time to test out my limited Gulp skills!

[roblarsen]

Also, thanks!