<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
*{
margin: 0;
padding: 0;
}
#box{
width: 200px;
height:200px;
background-color: #abb88e;
position: relative;
left:-200px;
}
#share{
width:50px;
height:100px;
background-color: #69c;
position: absolute;
right: -50px;
top:50px;
font-size:25px;
line-height:50px;
text-align: center;
}
</style>
<script>
window.onload = function(){
var oDiv = document.getElementById('box');
oDiv.onmouseover = function(){
startMove(10,0);
}
oDiv.onmouseout = function(){
startMove(-10,-200);
}
}
var timer = null;
function startMove(speed,iTarget){
clearInterval(timer);
var oDiv = document.getElementById('box');
setInterval(function(){
if (oDiv.offsetLeft == iTarget){
clearInterval(timer);
}else {
oDiv.style.left = oDiv.offsetLeft+speed+'px';
}
},30)
}
</script>
</head>
<body>
<div id="box">
<div id="share">分<br>享</div>
</div>
</body>
</html>