jQuery scrolltop - not working after first use

问题

i am using jQuery scrolltop function on this menu: http://goethesternfriseure.de/index.php

the issue is that the scroll function is only working at the first time. after a second click on a link, it scrolls to much to the bottom.

$('.sectionlink').click(function(e){
            var sectionelement = $(this).attr("rel");
            var myoffset = $('#'+sectionelement).offset().top;
            $('html, body').animate({
                scrollTop: myoffset
            }, 800);

            e.preventDefault();
        });

does anyone know whats happening there?

回答1:

your scroll top is not functioning cause you have to add "px" :

$('.sectionlink').click(function(e){
            var sectionelement = $(this).attr("rel");
            var myoffset = $('#'+sectionelement).offset().top;
            $('html, body').animate({
                scrollTop: myoffset+"px"
            }, 800);

            e.preventDefault();
        });

来源：https://stackoverflow.com/questions/26694822/jquery-scrolltop-not-working-after-first-use