Asterisk sometimes considered universal selector when used for multiplication

[openjck]

Setup

.stylintrc

{
    "universal": "never"
}

example.styl

p
    margin: 2*(10)

Result

example.styl
2:13 universal warning * selector is disallowed

Other notes

If there is a space after the asterisk (i.e., margin: 2* (10)), the rule does not fail.