javascript - Changing nav-bar color after scrolling? -


how can set navbar no background color?

when scrolling down after div nav-bar gets new background-color (the nav-bar should fixed @ top, use navbar-fixed-top in bootstrap)

i've tried tutorials didn't succeed.

this website : http://attafothman.olympe.in/
i'm talking black nav-bar on top.

here jsfiddle example. using jquery change background color based on scroll pixel position.

here fiddle using bootstrap

$(document).ready(function(){           var scroll_start = 0;    var startchange = $('#startchange');    var offset = startchange.offset();     if (startchange.length){    $(document).scroll(function() {        scroll_start = $(this).scrolltop();       if(scroll_start > offset.top) {           $(".navbar-default").css('background-color', '#f0f0f0');        } else {           $('.navbar-default').css('background-color', 'transparent');        }    });     } });

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