Error:@import url(https://...)

[kazuyoshi80]

If it import a web font in CSS, the CSS will output as shown below.

original CSS

@import url(https://fonts.googleapis.com/css?family=Pacifico&display=swap);

to

compiled CSS

@import url(https://fonts.googleapis.com/css?family=Pacifico&display=swap);
//fonts.googleapis.com/css?family=Pacifico&display=swap);

I want to prevent "//fonts.googleapis.com/css?family=Pacifico&display=swap);" from being output