BjornFridal

// In \Umbraco\Js\umbraco.controllers.js find this code (line 5429-5432 in version 7.1.3):
else if (rule.selector[0] == "#") {
     r.inline = "span";
     r.attributes = { id: rule.selector.substring(1) };
}

// directly after, add this:
else if (rule.selector.indexOf("p.") == 0) {
    r.classes = rule.selector.substring(2);
    r.block = 'p';