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Mar 30th, 2017
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  1. // jQuery addClass on scroll
  2.  
  3. var section1 = $('.css-class').offset().top;
  4. var section2 = $('.css-class-2').offset().top;
  5.  
  6. $(window).scroll(function(){
  7.  
  8. //section-1
  9. if( $(window).scrollTop() > section1 ) {
  10. $('.css-class').addClass('active'); //добавить класс, когда проскроллил элемент.
  11. } else {
  12. $('.css-class').removeClass('active'); //убрать класс, когда проскроллил обратно.
  13. }
  14.  
  15. //section-2
  16. if( $(window).scrollTop() > section2 ) {
  17. $('.advantages__fixed-nav-1').addClass('advantages__fixed-nav-2');
  18. } else {
  19. $('.advantages__fixed-nav-1').removeClass('advantages__fixed-nav-2');
  20. }
  21.  
  22. });
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