área de conteúdo html e css
<!DOCTYPE html>
<html>
<head>
<title>分享到</title>
<style type="text/css">
*{
padding:0px;
margin:0px;
}
#box{
width:150px;
height:200px;
background-color:pink;
position:relative;
top:100px;
left:-150px;
}
#box span{
width:50px;
height:100px;
background-color:green;
position:absolute;
right:-50px;
top:50px;
color:white;
}
</style>
</head>
<body>
<div id="box">
<span>分享到</span>
</div>
</body>
área de conteúdo js
<script type="text/javascript">
//left:10 itarget:100 正
//left:600 iTarget:50 负
window.onload = function(){
var Dbox = document.getElementById("box");
Dbox.onmouseover = function(){
// startMove(10,0);
startMove(0);
}
Dbox.onmouseout = function(){
// startMove(-10,-150);
startMove(-150);
}
}
var timer = null;
// var speed = 10;
var Dbox = document.getElementById("box");
function startMove(iTarget){
clearInterval(timer);//先将之前的定时器关了再执行下面的函数
timer = setInterval(function(){
var speed = 0;
//当offsetLeft大于iTarget的时候，speed等于负，否则是正的
if(Dbox.offsetLeft > iTarget){
speed =-10;
}else{
speed =10;
}
if(Dbox.offsetLeft == iTarget){
clearInterval(timer);
}else{
Dbox.style.left = Dbox.offsetLeft+speed+'px';
}
},30)
}
</script>
