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js 實現選單左右滾動顯示

<!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>http://flytosky.qzone.qq.com</title>
<style type="text/css">
*{font-family:"微軟雅黑"; margin:0 auto; padding:0px;}
.zj_nei_l{ width:1150px; height:130px; margin-left:25px;}
.zj_nei_l li{ float:left; font-size:20px; color:#6f6f6f; text-align:center;margin:0px 5px; list-style:none;}
.show_box .left_box,.show_box .right_box{
	float:left;
	height:130px;
}
.text_content p{ text-align:left; font-size:16px;  color:#fff; line-height:24px; padding:10px;}
.zj_nei_l li.show_box{
	width:98px;
}
.zj_nei_l li.show_box_hover{
	width:522px;
}
.show_box .right_box{
	display:none;
	width:414px;
	height:130px;
	overflow:hidden;
	margin-left: 10px;
}
.right_box .text_content{
	width:414px;
	background-color:#339933;
	color:#FFF;
	height:130px;
}
.zj_nei_l .left_box{
	width:88px;
	font-size:20px;
}
.zj_nei_l .left_box p{
	line-height:42px;
	font-size:20px;
}
.zj_nei_l .img_box{
	width: 88px;
	height:88px;
}
.show_box .item1{
	background:#030;
}
.show_box .item2{
	background:#300;
}
.show_box .item3{
	background:#600;
}
.show_box .item4{
	background:#6C0;
}
.show_box .item5{
	background:#6F9;
}
.show_box .item6{
	background:#3F9;
}
.show_box_hover .left_box{
	color:#339933;
}
.show_box_hover .item1{
	background:#0F9;
}
.show_box_hover .item2{
	background:#00C;
}
.show_box_hover .item3{
	background:#906;
}
.show_box_hover .item4{
	background:#9F6;
}
.show_box_hover .item5{
	background:#CF9;
}
.show_box_hover .item6{
	background:#90F;
}
</style>
<script type="text/javascript" src="http://code.jquery.com/jquery-1.10.2.min.js"></script>
</head>

<body>
    <div class="zj_nei_l">
      <ul>
        <li class="show_box show_box_hover">
        	<div class="left_box">
            	<div class="img_box item1">
                </div>
            	<p>學知識></p>
            </div>
            <div class="right_box" style="display:block;">
            	<div class="text_content">
                    <p>有事情請聯絡小白!交志同道合的朋友</p>
                    <p>郵箱:
[email protected]
</p> <p>QQ:879974693</p> </div> </div> <div class="clearboth"></div> </li> <li class="show_box"> <div class="left_box"> <div class="img_box item2"></div> <p>交摯友></p> </div> <div class="right_box"> <div class="text_content"> <p>有事情請聯絡小白!交志同道合的朋友</p> <p>郵箱:
[email protected]
</p> <p>QQ:879974693</p> </div> </div> <div class="clearboth"></div> </li> <li class="show_box"> <div class="left_box"> <div class="img_box item3"></div> <p>能賺錢></p> </div> <div class="right_box"> <div class="text_content"> <p>有事情請聯絡小白!交志同道合的朋友</p> <p>郵箱:
[email protected]
</p> <p>QQ:879974693</p> </div> </div> <div class="clearboth"></div> </li> <li class="zj_line"></li> <li class="show_box"> <div class="left_box"> <div class="img_box item4"></div> <p>找業務></p> </div> <div class="right_box"> <div class="text_content"> <p>有事情請聯絡小白!交志同道合的朋友</p> <p>郵箱:[email protected]</p> <p>QQ:879974693</p> </div> </div> <div class="clearboth"></div> </li> <li class="show_box"> <div class="left_box"> <div class="img_box item5"></div> <p>招人才></p> </div> <div class="right_box"> <div class="text_content"> <p>有事情請聯絡小白!交志同道合的朋友</p> <p>郵箱:[email protected]</p> <p>QQ:879974693</p> </div> </div> <div class="clearboth"></div> </li> <li class="show_box"> <div class="left_box"> <div class="img_box item6"></div> <p>求發展></p> </div> <div class="right_box"> <div class="text_content"> <p>有事情請聯絡小白!交志同道合的朋友</p> <p>郵箱:[email protected]</p> <p>QQ:879974693</p> </div> </div> <div class="clearboth"></div> </li> </ul> </div> <script type="text/javascript"> var hide_boxw = $(".right_box").width(); $(".show_box").mouseenter(function(e){ var li = $(this).find(".right_box"); $(this).addClass("show_box_hover"); if(li.css("display")=="none"){ $(".right_box").hide(); $(".show_box").removeClass("show_box_hover"); $(this).addClass("show_box_hover"); li.css({"width":"0px","display":"block"}); li.animate({"width":hide_boxw},hide_boxw); } }); </script> </body> </html>

實現效果