<!DOCTYPE html>
<html>
<head>
<title>startMoveCase</title>
<script>
function geyStyle(name, arrt) {
if (name.currentStyle) {
return name.currentStyle[arrt];
} else {
return getComputedStyle(name, false)[arrt];
}
}
function startMove(name, json, end) {
clearInterval(name.timer);
var stop=true;
name.timer = setInterval(function () {
for (const arrt in json) {
var cur = 0;
if (arrt == 'opacity') {
cur = cur = Math.round(parseFloat(geyStyle(name, arrt)) * 100);
} else {
cur = parseInt(geyStyle(name, arrt));
}
var spead;
spead = (json[arrt] - cur) / 10;
spead = spead > 0 ? Math.ceil(spead) : Math.floor(spead);
if (cur != json[arrt]) {
stop=false;
if (arrt == 'opacity') {
name.style[arrt] = (cur + spead) / 100;
} else {
name.style[arrt] = cur + spead + 'px';
}
}
}
if(stop==true){
clearInterval(name.timer);
if (arrt == 'opacity') {
name.style[arrt] = json[arrt] / 100;
} else {
name.style[arrt] = json[arrt] + 'px';
}
if (end) end();
}
}, 17);
}
window.onload = function () {
var oDiv = document.getElementById('div1');
oDiv.onmouseover = function () {
startMove(oDiv, { width: 140, height: 400, opacity: 40 });
}
oDiv.onmouseout = function () {
startMove(oDiv, { width: 100, height: 100, opacity: 100 });
}
}
</script>
</head>
<style>
*{
margin: 0;
padding: 0;
}
div {
width: 100px;
height: 100px;
background: red;
}
</style>
<body>
<div id="div1"></div>
</body>
</html>
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