How do I create a sticky navigation bar that attaches to the top upon scrolling?

Creating a Sticky Navigation Bar that Attaches to the Top upon Scrolling

Problem:

Design a navigation bar positioned at the bottom of the visible page initially. When a user scrolls down, the navigation bar ascends until it fixes at the top of the page.

Solution:

The solution involves utilizing jQuery and JavaScript to alter the navigation bar's position based on the scroll position.

Implementation:

1. HTML:

   <div>

   Copy after login

2. CSS:

   #banner {
     height: 273px;
   }
   
   #nav_bar {
     height: 30px;
   }
   
   $(document).ready(function() {
     $(window).scroll(function () {
       if ($(window).scrollTop() > 550) {
         $('#nav_bar').addClass('navbar-fixed-top');
       }
       if ($(window).scrollTop() < 551) {
         $('#nav_bar').removeClass('navbar-fixed-top');
       }
     });
   });

   Copy after login

Further Notes:

• Adjust the values in the JavaScript (550 and 551) to match the exact scroll position where the navigation bar should fix.
• This solution can be applied to other elements that need to remain fixed at a specific scroll position.

The above is the detailed content of How do I create a sticky navigation bar that attaches to the top upon scrolling?. For more information, please follow other related articles on the PHP Chinese website!