js--小球跟隨滑鼠移動
阿新 • • 發佈:2021-01-14
技術標籤:javascript
<style>
.box {
width: 30px;
height: 30px;
border-radius: 50%;
background-color: darkturquoise;
display: none;
position: fixed;
left: 0;
top: 0;
}
</style>
<body>
<div class='box'></box>
< script>
var div = document.querySelector('div');
document.onmousemove = function (e) {
div.style.display = 'block';
var radous = div.offsetWidth >> 1;
e = e || window.event;
var x = e.clientX;
div.style.left = x - radous + 'px';
var y = e.clientY;
div.style.top = y - radous + 'px';
}
</script>
</body>