I'm familiar with policies that generally strive for specificity of (0, 1, 0) like BEM or (1, 0, 0), but I'd be very interested in any policy that rules out pse

I'm familiar with policies that generally strive for specificity of (0, 1, 0) like BEM or (1, 0, 0), but I'd be very interested in any policy that rules out pseudo-classes like `:hover`, as prohibiting them would leave you to handle any interactivity you'd get for free from CSS via JavaScript.