I have an icon which is PNG format and I use it to represent a service on a site I am building on Joomla. It will be nice if anyone can help me create a circular shadow ripple effect on the icon when someone hover over the icon. The epicentre has to be the icon. I tried W3schools but their animations were mainly related to width. I just want a shadow appears around the icon and fade away with icon as epicenter. I am learning all these stuff so any help will be highly appreciated.