Getting errors in the CSS linter when using media queries

Question

When I put the code below through the CSS Linter I get six errors. Are these bugs in the linter or the CSS? I can't see anything wrong with the CSS. I can't seem to turn off or ignore the errors either regardless of the settings.

@media ( max-width: 320px ) {
    .test {
        padding: 20px;
    }
}

Answer 1

I only had to remove the spaces for it to pass:

@media (max-width:320px) {
    .test {
        padding: 20px;
    }
}