大幅广告的展开与收起：
<html xmlns="http://www.w3.org/1999/xhtml">
<head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>展开与收起效果</title>
<style>
*{
margin: 0;
padding: 0;
}
body{
width: 730px;
margin: auto;
}
#banner{
height: 336px;
overflow: hidden;
}
p{
line-height: 30px;
text-align: center;
}
</style>
<script>
var h=0;
function addH(){
var banner=document.getElementById(‘banner‘)
if(h<336){
h+=10
banner.style.height=h+‘px‘
}else{
return
}
setTimeout(addH,50)
}
window.onload=function(){
addH();
}
function removeH(){
var banner=document.getElementById(‘banner‘)
if(h>0){
h-=10
banner.style.height=h+‘px‘
}else{
// banner.style.display=‘none‘
return
}
setTimeout(removeH,50)
}
window.onload=function(){
addH();
setTimeout(removeH,5000)
}
</script>
</head>
<div id=‘banner‘><img src=‘images/1.jpg‘></div>
<p>正文</p>
<body>
</body>
</html>
商品信息展示的展开与收起
<html xmlns="http://www.w3.org/1999/xhtml">
<head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>展开与收起效果</title>
<style>
*{
margin: 0;
padding: 0;
}
#content{
width: 400px;
height: auto;
margin: 0 auto;
border:1px solid #666;
}
#hdn{
height: 50px;
width: 400px;
background: red;
}
a{
display: block;
height: 30px;
background: #ccc;
margin: 0 auto;
width: 50px;
line-height: 30px;
text-align: center;
text-decoration: none;
}
</style>
<script>
function showDiv(){
var hrf=document.getElementById(‘hrf‘)
var hdn=document.getElementById(‘hdn‘)
hdn.style.display=‘block‘;
hrf.innerHTML=‘收起-‘;
hrf.href=‘javascript:hiddenDiv()‘
}
function hiddenDiv(){
var hdn=document.getElementById(‘hdn‘) //这个变量申明不能放于外部
var hrf=document.getElementById(‘hrf‘)
hdn.style.display=‘none‘;
hrf.innerHTML=‘展开+‘;
hrf.href=‘javascript:showDiv()‘
}
</script>
</head>
<body>
<div id=‘content‘>
<p>展开与收起效果展开与收起效果展开与收起效果展开与收起效果展开与收起效果</p>
<div id=‘hdn‘ style=‘display:none‘>
<p>展开与收起效果展开与收起效果展开与收起效果展开与收起效果展开与收起效果</p>
</div>
</div>
<p><a id=‘hrf‘ href=‘javascript:showDiv()‘>展开+</a></p> //可以通过这样引用函数
</body>
</html>
阅读文章的展开与收起
<html xmlns="http://www.w3.org/1999/xhtml">
<head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>展开与收起效果</title>
<style>
*{
margin: 0;
padding: 0;
}
#content{
width: 400px;
height: auto;
margin: 0 auto;
border:1px solid #666;
}
#hdn{
height: 50px;
width: 400px;
background: red;
}
a{
display: block;
height: 30px;
background: #ccc;
margin: 0 auto;
width: 50px;
line-height: 30px;
text-align: center;
text-decoration: none;
}
</style>
<script>
function showDiv(){
var hrf=document.getElementById(‘hrf‘)
var hdn=document.getElementById(‘hdn‘)
hdn.style.display=‘block‘;
hrf.innerHTML=‘收起-‘;
hrf.href=‘javascript:hiddenDiv()‘
}
function hiddenDiv(){
var hdn=document.getElementById(‘hdn‘) //这个变量申明不能放于外部
var hrf=document.getElementById(‘hrf‘)
hdn.style.display=‘none‘;
hrf.innerHTML=‘展开+‘;
hrf.href=‘javascript:showDiv()‘
}
</script>
</head>
<body>
<div id=‘content‘>
<p>展开与收起效果展开与收起效果展开与收起效果展开与收起效果展开与收起效果</p>
<div id=‘hdn‘ style=‘display:none‘>
<p>展开与收起效果展开与收起效果展开与收起效果展开与收起效果展开与收起效果</p>
</div>
</div>
<p><a id=‘hrf‘ href=‘javascript:showDiv()‘>展开+</a></p> //可以通过这样引用函数
</body>
</html>
时间： 2024-08-29 12:14:27