Let me tell you what parallax scrolling is? It’s a special scrolling method in computer and web graphics. In which the background images move slower than the nearest images on the screen.
Parallax Scrolling made easy with a jQuery plugin called Scrolly. It’s a simply, easy-to-use jQuery plugin used for parallax scrolling. The size of this plugin is almost 698 KB (Kilo Bytes) compressed in only one single js file.