<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>鼠标光标渐变跟踪</title>
<style>
button {
position: relative;
background: #7983ff;
padding: 1rem 2rem;
color: #fff;
outline: none;
overflow: hidden;
cursor: pointer;
border: none;
font-size: 15px;
}
span {
position: relative;
}
button::before {
--size: 0;
content: '';
position: absolute;
left: var(--x);
top: var(--y);
width: var(--size);
height: var(--size);
background: radial-gradient(circle closest-side, pink, transparent);
transform: translate(-50%, -50%);
transition: width 0.2s ease, height 0.2s ease;
}
button:hover::before {
--size: 200px;
}
</style>
</head>
<body>
<button class="btn">
<span>悬停</span>
<!-- 如果元素的父级具有定位上下文(position: relative )，您还需要减去它的偏移量。
var x = e.pageX - btn.offsetLeft - btn.offsetParent.offsetLeft
var y = e.pageY - btn.offsetTop - btn.offsetParent.offsetTop -->
</button>
<script>
var btn = document.querySelector('.btn');
btn.onmousemove = function(e) {
var x = e.pageX - btn.offsetLeft
var y = e.pageY - btn.offsetTop
btn.style.setProperty('--x', x + 'px')
btn.style.setProperty('--y', y + 'px')
}
</script>
</body>
</html>
网友评论