This is so satisfying I had to make a site only for it...
This ripple effect originated in 2014 when Google created Material Design. It appeared just as it does on this site, when you clicked on buttons. I personally think it's a very neat way of giving click feedback.
To use it in your projects, click the link at the top of the page. The effect is located inside the
ripples.js script. Just add it to any page with:
<script src="ripples.js"></script>It will automatically select everything with
.buttonclass on it and make it have a ripple.
Or, ya' know, just spam the buttons... It's too good.