日期:2014-05-17  浏览次数:20801 次

如何将网页版式布局下的二级菜单不向左显示而是向下显示
<!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=gb2312" />
    <script type="text/javascript">
        startList = function() {
            if (document.all && document.getElementById) {
                navRoot = document.getElementById("menu");
                var allli = navRoot.getElementsByTagName("li")
                for (i = 0; i < allli.length; i++) {
                    node = allli[i];
                    node.onmouseover = function() {
                        this.className += " current";
                    }
                    node.onmouseout = function() {
                        this.className = this.className.replace(" current", "");
                    }
                }
            }
        }
        window.onload=startList;
    </script>
<style type="text/css">
    body { font-family: Verdana; font-size: 12px; line-height: 1.5; }
    img { border-style: none; }
    a { color: #000; text-decoration: none; }
    a:hover { color: #F00; }
    #menu { width: 100px; border: 1px solid #CCC; border-bottom:none;}
    #menu ul { list-style: none; margin: 0px; padding: 0px; }
    #menu ul li { background: #eee; padding: 0px 8px; height: 26px; line-height: 26px; border-bottom: 1px solid #CCC; position:relative; }
    #menu ul li ul { display:none; position: absolute; left: 100px; top: 0px; width:100px; border:1px solid #ccc; border-bottom:none; }
    #me