Modify the Bootstrap navbar color as you scroll through the page

While utilizing Bootstrap for a theme, I came across this interesting site: . The effect on the navbar caught my attention - it changes color when scrolling down and also modifies the color of elements.

Appreciate any insights or advice. Thanks!

Answer №1

Check out this example on JSFiddle demonstrating how to use JQuery to alter the background color based on scrolling.

For a different approach, take a look at this Bootstrap fiddle.

$(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');
       }
   });
    }
});

You may also find helpful information in this post about changing nav-bar color after scrolling.

Answer №2

Using only vanilla Javascript:

window.addEventListener('scroll', function() {
  if (document.body.scrollTop > 5 || document.documentElement.scrollTop > 5) {
    //alter the background-color to white
  } else {
    //modify the background-color to blue
  }
});

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