Handling CSS Import Rule

[raincreativelab]

I just checked out your Element query. I'm using this library on top of Drupal 8.
I found out that you are not handling CSS Import when parsing rules.

After checking in your code, I found a solution that fixes it.

function parseRule(rule) {
    // Handle rule type#3 – CSS Import
    if (rule.type === 3) {
        var importedRules = rule.styleSheet.cssRules;
        if (importedRules) {
            for (var i = 0; i < importedRules.length; i++) {
                parseRule(importedRules[i]);
            }
        }
    }
}