Preloaders are what you inspect on the screen while the rest of the page’s content is still loading. Preloaders or loaders are often easy or complex animations that are used to keep visitors entertained while server operations finish processing.
At first, this loader is in the initial stage, where there is a loader and 0% text or number at the center on the webpage. But when you click on that center text or number, the loader will be activated and it starts to rotates as well as the center percentage also starts to increase from 0% to 100%. When it completed 100%, the loader stops to rotating.
You can also download the source code files through the given link. Click here to download source code files.