There are a few ways to make a sticky navbar for your webpage. One way is to use CSS. Here is an example of how to do this:

Code snippet

nav {
  position: sticky;
  top: 0;
  background-color: #333;
  padding: 10px;
  z-index: 99;
}

The position: sticky property will cause the navbar to stick to the top of the page when the user scrolls down. The top: 0 property will set the top position of the navbar to 0px. The background-color: #333 property will set the background color of the navbar to black. The padding: 10px property will add 10px of padding to the top and bottom of the navbar. The z-index: 99 property will make the navbar appear on top of other elements on the page.

Another way to make a sticky navbar is to use JavaScript. Here is an example of how to do this:

Code snippet

window.addEventListener('scroll', function() {
  var navbar = document.getElementById('navbar');
  if (window.scrollY > 0) {
    navbar.classList.add('sticky');
  } else {
    navbar.classList.remove('sticky');
  }
});

The window.addEventListener('scroll', function() { ... }) function will listen for the scroll event on the window object. When the scroll event occurs, the function will check the value of the window.scrollY property. If the window.scrollY property is greater than 0, then the function will add the sticky class to the navbar element. If the window.scrollY property is equal to 0, then the function will remove the sticky class from the navbar element.

The navbar element is the element that contains the navbar. The classList property is a property of the Element object that contains a list of classes that are applied to the element. The add() method of the classList property will add a class to the element. The remove() method of the classList property will remove a class from the element.

The sticky class is a class that is used to make an element sticky. When an element has the sticky class, it will stick to the top of the page when the user scrolls down.

You can use either of these methods to make a sticky navbar for your webpage. The method that you choose will depend on your preferences and your skillset.