JavaScript+CSS+DIV实现下拉菜单示例

时间：2023-03-09 08:39:08
JavaScript+CSS+DIV实现下拉菜单示例 
<!DOCTYPE html>

<html>

  <head>

    <title>下拉菜单示例</title>

	<script language="javaScript">

	    function show(menu)

	        {document.getElementById(menu).style.visibility="visible";}

	    function hide(){

	        document.getElementById("menu1").style.visibility="hidden";

	        document.getElementById("menu2").style.visibility="hidden";

	        document.getElementById("menu3").style.visibility="hidden";

	    }

	</script>

  </head>

  <body>

   <table>

       <tr bgcolor="#9999FF"align="center">

       <td width="120"onMouseMove="show('menu1')"onMouseOut="hide()">系列课程</td>

       <td width="120"onMouseMove="show('menu2')"onMouseOut="hide()">教学课程</td>

       <td width="120"onMouseMove="show('menu3')"onMouseOut="hide()">课程大纲</td>

       </tr>

   </table>

   <div id="menu1"onMouseMove="show('menu1')"onMouseOut="hide()"

       style="background:#9999FF;position:absolute;left:12;top:38;width:120;visibility:hidden">

       <span>c++程序设计</span><br>

       <span>java程序设计</span><br>

       <span>c#程序设计</span><br>

   </div>

   <div id="menu2"onMouseMove="show('menu2')"onMouseOut="hide()"

       style="background:#9999FF;position:absolute;left:137;top:38;width:120;visibility:hidden">

       <span>c++课件</span><br>

       <span>java课件</span><br>

       <span>c#课件</span><br>

   </div>

   <div id="menu3"onMouseMove="show('menu3')"onMouseOut="hide()"

       style="background:#9999FF;position:absolute;left:260;top:38;width:120;visibility:hidden">

       <span>c++教学大纲</span><br>

       <span>java教学大纲</span><br>

       <span>c#教学大纲</span><br>

   </div>

  </body>

</html>

　　JavaScript+CSS+DIV实现下拉菜单示例

相关文章