(function () {
    window.onload = function () {
        init();
    }

    function init() {
        var topNav = document.getElementById("dyna-sitebuild-site-top-nav-background"),
            color = document.getElementById("dyna-sitebuild-site-top-background-color");

        topNav.classList.add("dyna-sitebuilder-fixed");
        color.style.paddingTop = topNav.offsetHeight + "px";
    }
})();