个回答

• Python程序猿

  2016-04-13 11:06:11

  将<script type="application/javascript">改为"text/javascript"试试看

  
  

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• 明哥就是神

  2015-09-02 15:14:23

  .topmenu .lihover{ border:1px solid #ddd; border-right:0; box-shadow:0 0 8px #ddd; -moz-box-shadow:0 0 8px #ddd; -webkit-box-shadow:0 0 8px #ddd; background-image:none;}/*鼠标移动到上面时的样式*/
  .topmenu .lihover .submenu{ display:block;}/*悬浮层*/
  .topmenu .lihover span{ background:#fff; display:inline-block; z-index:20; width:20px; height:30px; float:right; position:relative;}/*白色小方框*/

  <script type="application/javascript">
  window.onload = function(){
  	var Lis =document.getElementsByTagName("li");
  	for(i = 0; i < Lis.length; i++){
  		Lis[i].onmouseover = function(){
  			this.className = "lihover";
  			}
  		Lis[i].onmouseout = function(){
  			this.className = "";
  			}
  		}
  	}
  </script>

  
  

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