my if this AND this then that statement doesnt work

i want it to log small if both requirement are met, but i cant get it to work

//change css on scroll
$(window).scroll(function () {
    var scroll = $(window).scrollTop();
    var Wwidth = $(window).width();

    if ((scroll <= 550) && (Wwidth <= 550)) {
        console.log(small);
    } else {

        console.log(big);
    }
});