javascript - Multiple Fixed headings on scroll -


suppose have headings below

<h1 class="fixontop">heading 1</h1> content goes here. . . . long paragraph. <h1 class="fixontop">heading 2</h1> 2nd content goes here. . . . long paragraph. <h1 class="fixontop">heading 3</h1> 3nd content goes here. . . . long paragraph.

so when scroll heading 1 should fixed on top , scroll down heading 2 should fixed , other headings fixed position must removed.i think possible via jquery.how can ?

i have tried below..

 $(window).scroll(function() {     if ($(this).scrolltop() ) { //here condition finds if heading tag in screenview.           $('.fixontop').css({             'display': 'fixed'         });     } });

here fiddle http://jsfiddle.net/0can8pt9/

check 1 out https://jsfiddle.net/ctjdpe91/1/ think using plugin waypoints such purposes idea 

var scrolltimeout; var breakpoints = [];  function fix_heading(heading){     if( heading.hasclass('heading-fixed'))         return       heading         .addclass('heading-fixed')          // prevent content jumping         .parents('section').css('padding-top', heading.height()) }  function unfix_heading(heading){     if(! heading.hasclass('heading-fixed'))         return      heading         .removeclass('heading-fixed')         .parents('section').css('padding-top', 0);     }  function fix_headings(breakpoints){     cleartimeout(scrolltimeout);     scrolltimeout = settimeout(function(){         $(breakpoints).each(function(){             var breakpoint = this;             var breakpoint_heading = $('.fixontop[data-fix-on='+breakpoint+']')              if(document.body.scrolltop > breakpoint ){                 fix_heading(breakpoint_heading)             }              if(document.body.scrolltop < ( breakpoint )){                 unfix_heading(breakpoint_heading)             }              //scrolled out of parent container             if(document.body.scrolltop > (breakpoint + breakpoint_heading.parents('section').outerheight())){                 unfix_heading(breakpoint_heading)                }           })      }, 30) //timeout here better performance }  $(function(){     //setup breakpoints     $('.fixontop').each(function(){         breakpoints.push ($(this).position().top)         $(this).attr('data-fix-on', $(this).position().top)     })     $(document).scroll(function(){fix_headings(breakpoints)}) })

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