coinso · June 13, 2017 08:00
diff --git a/scroll up html b/scroll up html
 <a href="#" class="scrollup" style="display: none;"><i class="fa fa-angle-up active"></i></a>
diff --git a/scrollup jquery b/scrollup jquery
 (function($){
    $(window).scroll(function () {
        if ($(this).scrollTop() > 100) {
            $('.scrollup').fadeIn();
        } else {
            $('.scrollup').fadeOut();
        }
    });
    $('.scrollup').click(function () {
        $("html, body").animate({
            scrollTop: 0
        }, 1000);
        return false;
    });
 })(jQuery);
diff --git a/scrollup style b/scrollup style
 .scrollup {
    display: none;
    position: fixed;
    bottom: 15px;
    right: 15px;
    width: 50px;
    height: 50px;
    background: #fff;
    outline: 0;
    text-align: center;
 }