Charset in .css breaking the task

[the-glima]

I don't know if this is something from Juice, but if I have a charset in my .css the task just stops.

My .css starts with this:

@charset 'UTF-8';

html {
  font-size: 62.5%;
}
.....

Then when I run the task:

The terminal freezes after that.

[the-glima]

+1