Creating a Ripple Effect on Buttons in CSS

Simulate a material design ripple effect on buttons for user feedback.

Source Code

.button::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    transition: width 0.4s ease, height 0.4s ease;
}
.button:hover::after {
    width: 300%;
    height: 300%;
}