演示

原理
- 监听按钮点击事件;
- 点击事件中获取点击位置;
- 在点击位置生成一个元素作为水波;
- 水波生成后通过扩散同时变透明;
- 水波根据动画时间变透明后销毁;
代码
DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no">
<title>按钮点击涟漪效果title>
<style>
* {
padding: 0;
margin: 0;
user-select: none;
}
html,
body {
height: 100vh;
}
style>
<style>
body {
display: flex;
background-color: #222222;
align-items: center;
justify-content: center;
}
button {
width: 200px;
height: 80px;
margin: 20px;
border-radius: 40px;
border: none;
font-size: 30px;
color: rgba(255, 255, 255, 0.5);
}
button:focus {
outline: none;
}
button:nth-child(1) {
background: linear-gradient(to right, #0365CA, #4FDEF8);
}
button:nth-child(2) {
background: linear-gradient(to right, #DD72AB, #F0B6DA);
}
style>
<style>
button {
position: relative;
overflow: hidden;
}
button span {
position: absolute;
background: white;
pointer-events: none;
border-radius: 50%;
transform: translate(-50%, -50%);
animation: animate 1s linear;
}
@keyframes animate {
0% {
width: 0px;
height: 0px;
opacity: 0.5;
}
100% {
width: 400px;
height: 400px;
opacity: 0;
}
}
style>
<script>
window.onload = () => {
const buttons = document.querySelectorAll('button');
buttons.forEach(btn => {
btn.addEventListener('click', function (e) {
let x = e.offsetX;
let y = e.offsetY;
let ripple = document.createElement('span');
ripple.style.left = `${x}px`;
ripple.style.top = `${y}px`;
this.appendChild(ripple);
setTimeout(() => {
ripple.remove();
}, 1000)
})
})
};
script>
head>
<body>
<button>BUTTONbutton>
<button>BUTTONbutton>
body>
html>

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