So, where did that come from, because it wasn't there before? Let's take a look at how that works. So, scrolling down, we have main.js. If I go and look in here, we have main.js. This right here is helping us with our scrolling, so I'm just going to go through and explain what this is because you can get this code to make this work off Stack Overflow.
So, if you search for bootstrap scrolling navbar issues, you will be able to scroll down and find it. If you look at the code being used, it's very similar to what I have. Let's take a look at our menu to see the functionality of how this actually works. When scrolling up, you get an animation which is using a plugin for jQuery. That is a lot of JavaScript running, along with this animation that we're seeing, and the easing in plugin, let's go look right...