怎么使网页菜单浮在最上面?

Question

此回复为自动发出,仅用于显示而已，并无任何其他特殊作用
楼主【tanlingyun】截止到2008-06-29 16:12:43的历史汇总数据(不包括此帖)：
发帖数:26                 发帖分:1905               
结贴数:26                 结贴分:1905               
未结数:0                  未结分:0                  
结贴率:100.00%            结分率:100.00%            
敬礼!

Answer 1

<div style="left:54px; position:absolute; top:160px; height: 60px; width: 700px;z-index:-100">Aaaaaaaaaaaaaaaaaaaa</div>
改成这样 z-index

Answer 2

<div style="left:54px; position:absolute; top:71px; height: 60px; width: 700px;z-index:1000">
最好是把你菜单栏的div的z-index设置为最高，那样其余的就不需要了

Answer 3

你看好了 我第二次回复的
<div style="left:54px; position:absolute; top:71px; height: 60px; width: 700px;z-index:1000">//---->是这个div他最高以后的文字就都在下面了 理解不？    <ul id="navigation">
        <li onmouseover="displaySubMenu(this)" onmouseout="hideSubMenu(this)">
            <a href="#">信息查询</a>    
            <ul>
                <li><a href="#">药品信息</a></li>
                <li><a href="#">药品采购计划</a></li>
                <li><a href="#">采购员</a></li>
                <li><a href="#">供应商</a></li>
                <li><a href="#">库管员</a></li>
            </ul>
        </li>
        <li onmouseover="displaySubMenu(this)" onmouseout="hideSubMenu(this)">
            <a href="#">栏目2</a>    
            <ul>
                <li><a href="#">栏目2->菜单1</a></li>
                <li><a href="#">栏目2->菜单2</a></li>
                <li><a href="#">栏目2->菜单3</a></li>
                <li><a href="#">栏目2->菜单4</a></li>
                <li><a href="#">栏目2->菜单5</a></li>
            </ul>
        </li>
        <li onmouseover="displaySubMenu(this)" onmouseout="hideSubMenu(this)">
            <a href="#">栏目3</a>    
            <ul>
                <li>
                    <a href="#">栏目3->菜单1</a>
                </li>
                <li><a href="#">栏目3->菜单2</a></li>
                <li>
                    <a href="#">栏目3->菜单3</a>
                </li>
            </ul>
        </li>
            <li onmouseover="displaySubMenu(this)" onmouseout="hideSubMenu(this)">
            <a href="#">栏目3</a>    
            <ul>
                <li>
                    <a href="#">栏目3->菜单1</a>
                </li>
                <li><a href="#">栏目3->菜单2</a></li>
                <li>
                    <a href="#">栏目3->菜单3</a>
                </li>
            </ul>
        </li>
            <li onmouseover="displaySubMenu(this)" onmouseout="hideSubMenu(this)">
            <a href="#">栏目3</a>    
            <ul>
                <li>
                    <a href="#">栏目3->菜单1</a>
                </li>
                <li><a href="#">栏目3->菜单2</a></li>
                <li>
                    <a href="#">栏目3->菜单3</a>
                </li>
            </ul>
        </li>
    </ul>
</div>