Button Ripple Effect On Click

A tiny JavaScript implementation of the button ripple click effect inspired by Material Design.

How to use it:

1. The required CSS styles for the ripple effect.

button .circle {
  position: absolute;
  background-color: #fff;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  transform: translate(-50%, -50%) scale(0);
  animation: scale 0.5s ease-out;
}
@keyframes scale {
  to {
    transform: translate(-50%, -50%) scale(3);
    opacity: 0;
  }
}

2. Attach the ripple click effect to all buttons with the CSS class of ‘ripple’.

<button class="ripple">Click Me</button>

const buttons = document.querySelectorAll('.ripple')
buttons.forEach(button => {
    button.addEventListener('click', function (e) {
        const x = e.clientX
        const y = e.clientY
        const buttonTop = e.target.offsetTop
        const buttonLeft = e.target.offsetLeft
        const xInside = x - buttonLeft
        const yInside = y - buttonTop
        const circle = document.createElement('span')
        circle.classList.add('circle')
        circle.style.top = yInside + 'px'
        circle.style.left = xInside + 'px'
        this.appendChild(circle)
        setTimeout(() => circle.remove(), 500)
    })
})