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總的來說就是利用 滑鼠移至上方onmouseover 和 滑鼠移除onmouseout 這兩個時間來完成的。
首先是HTML 結構
複製代碼 代碼如下:
<body>
<div id="div1">
<span>側邊欄</span>
</div>
</body>
然後是css的樣式：
複製代碼 代碼如下:
#div1{
width:150px;
height:200px;
background:#999999;
position:absolute;
left:-150px;}
span{
width:20px;
height:70px;
line-height:23px;
background:#09C;
position:absolute;
right:-20px;
top:70px;}
預設的樣式 側邊欄是隱藏起來的
當滑鼠移入以後
下面是完整代碼：
複製代碼 代碼如下:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>無標題文檔</title>
<style type="text/css">
#div1{
width:150px;
height:200px;
background:#999999;
position:absolute;
left:-150px;}
span{
width:20px;
height:70px;
line-height:23px;
background:#09C;
position:absolute;
right:-20px;
top:70px;}
</style>
<script>
window.onload=function(){
var odiv=document.getElementById('div1');
odiv.onmouseover=function ()
{
startmove(0,10);//第一個參數為div left屬性的目標值 第二個為 每次移動多少像素
}
odiv.onmouseout=function ()
{
startmove(-150,-10);
}
}
var timer=null;
function startmove(target,speed)
{
var odiv=document.getElementById('div1');
clearInterval(timer);
timer=setInterval(function (){
if(odiv.offsetLeft==target)
{
clearInterval(timer);
}
else
{
odiv.style.left=odiv.offsetLeft+speed+'px';
}
},30)
}
</script>
</head>
<body>
<div id="div1">
<span>側邊欄</span>
</div>
</body>
</html>
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