我在这里查看了所有 div 滚动的东西，但似乎都不起作用，我只是想将一个带有 rails 内容的页面加载到聊天框架中，并让该 div 像普通聊天窗口一样滚动到底部. 一切都很好，只是没有滚动。
.html 文件：
<html>
<head>
<title>Chat - Customer Module</title>
</head>
<div id="wrapper">
<div id="menu">
<p class="welcome">Welcome, <b></b></p>
<p class="logout"><a id="exit" href="#">Exit Chat</a></p>
<div style="clear:both"></div>
</div>
<div id="chatbox">
<% @array.each do |i| %>
<dt><%=Time.parse(i["createdAt"]).to_time %></dt>
<h3><dd><%= i["text"] %></dd></h3>
<br />
<% end %>
</div>
<form name="message" action="">
<input name="usermsg" type="text" id="usermsg" size="63" />
<input name="submitmsg" type="submit" id="submitmsg" value="Send" />
</form>
</div>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3/jquery.min.js"></script>
<script type="text/javascript">
// jQuery Document
$(document).ready(function(){
console.log("loading")
var oldscrollHeight = $("#chatbox").attr("scrollHeight") - 20; //Scroll height before the request
var newscrollHeight = $("#chatbox").attr("scrollHeight") - 20; //Scroll height after the request
if(newscrollHeight > oldscrollHeight){
$("#chatbox").animate({ scrollTop: newscrollHeight }, 'normal');
}
});
</script>
</body>
</html>
CSS：
body {
font:12px arial;
color: #222;
text-align:center;
padding:35px; }
form, p, span {
margin:0;
padding:0; }
input { font:12px arial; }
a {
color:#0000FF;
text-decoration:none; }
a:hover { text-decoration:underline; }
#wrapper, #loginform {
margin:0 auto;
padding-bottom:25px;
background:#EBF4FB;
width:504px;
border:1px solid #ACD8F0; }
#loginform { padding-top:18px; }
#loginform p { margin: 5px; }
#chatbox {
text-align:left;
margin:0 auto;
margin-bottom:25px;
padding:10px;
background:#fff;
height:350px;
width:430px;
border:1px solid #ACD8F0;
overflow:auto; }
#usermsg {
width:395px;
border:1px solid #ACD8F0; }
#submit { width: 60px; }
.error { color: #ff0000; }
#menu { padding:12.5px 25px 12.5px 25px; }
.welcome { float:left; }
.logout { float:rightright; }
.msgln { margin:0 0 2px 0; }