smoothscroll.js

/* smoothscroll.js by @CheapApples12. Software provided without warranty. ©Copyright @CheapApples12 2017. All rights reserved. 
/  Do not remove this attribution statement.
/  Use html "data-offset" attribute to offset scroll for headers and navbars. Eg. <a href="#test" data-offset="60" />
*/

$(function() {
    $('a[href*="#"]:not([href="#"])').click(function() {
        if (location.pathname.replace(/^\//,'') == this.pathname.replace(/^\//,'') && location.hostname == this.hostname) {
            var target = $(this.hash);
            target = target.length ? target : $('[name=' + this.hash.slice(1) +']');
            
            if (this.getAttribute("data-offset") != "") {
                var targetOffset = target.offset().top - this.getAttribute("data-offset");
            } else {
                var targetOffset = target.offset().top;
            }
            
            if (target.length) {
                $('html, body').animate({
                    scrollTop: targetOffset
                }, 1000);
                
                return false;
            }
        }
    });
});