to-top.js

js matsumoto.or.jp collected 2026-10-05 08:57:37 UTC 323 bytes, 15 lines download raw bytes

1$(function(){
2  $(window).on('scroll', function(){
3    var now = $(this).scrollTop();
4
5    if(now > 300){
6      $('#page-top').addClass('is-show');
7    }else{
8      $('#page-top').removeClass('is-show');
9    }
10  });
11
12  $('#move-page-top').on('click', function(){
13    $('html,body').animate({scrollTop:0}, 'slow');
14  });
15});

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