发布后的内容高度缓慢变大，透明度从0到100
js代码：
<script>
window.onload=function(){
<span style="white-space:pre"> </span>var oTxt=document.getElementById('txts');
<span style="white-space:pre"> </span>var oBtn=document.getElementById('btn');
<span style="white-space:pre"> </span>var oUl=document.getElementById('ul1');
<span style="white-space:pre"> </span>var oLi=oUl.getElementsByTagName('li');
oBtn.onclick=function(){
<span style="white-space:pre"> </span>var node=document.createElement('li');
node.innerHTML=oTxt.value;
oTxt.value='';
if(oLi.length>0)
{
oUl.insertBefore(node,oLi[0]);
}
else{
oUl.appendChild(node);
}
var iHeight=node.offsetHeight;
node.style.height='0';
startMove(node,{height:iHeight-8},function(){
startMove(node,{opacity:100});
});
};}; </script>
<style>
#ul1{
width:400px;
height:400px;
margin:10px auto;
padding:0px;
border:1px solid #222222;
overflow:hidden;
}
#ul1 li{
width:360px;
margin:0px auto;
padding:4px;
border-bottom:1px dashed #222222;
list-style:none;
overflow:hidden;
filter:alpha(opacity=0);
opacity: 0;
text-overflow: ellipsis;
}
</style>
<body>
<span style="white-space:pre"> </span><textarea id="txts" cols="40" rows="4" style="resize: none"></textarea>
<input id="btn" type="button" value="发布" />
<ul id="ul1">
</ul>
</body>
原文：http://blog.csdn.net/u012193330/article/details/41653147