<style>/*导航*/#webmenu {width:950px;margin:4px auto;z-index:999;}#webmenu ul {padding-left:20px;height:27px;background: #000000;}#webmenu li {float:left;font-size:14px;padding:6px 0;color:#FFFFFF;margin-right:5px;position:relative;}#webmenu a:link,#webmenu a:visited {color:#FFFFFF;font-weight:bold;}/*下拉菜单*/#webmenu li div a:link,#webmenu li div a:visited{ display:block; text-decoration:none; color:#FFFFFF; width:100%; height:24px; line-height:24px; text-align:center;}#webmenu li div a:hover{color:#FFFFFF; background:#000000; text-decoration:none;}#webmenu li div{display:none; position:absolute; top:25px; left:0; width:100px;border: 1px solid #000000;border-left: 6px solid #000000; background: #000000;z-index:9999;}</style><script>function displaySubMenu(li){var subMenu = li.getElementsByTagName("div")[0];subMenu.style.display = "block";}function hideSubMenu(li){var subMenu = li.getElementsByTagName("div")[0];subMenu.style.display = "none";}</script><div id="webmenu"> <ul><li> <a href="/" target="_top">首页</a></li><li onmouseover="displaySubMenu(this)" onmouseout="hideSubMenu(this)")>| <a href="" target="_top">网站运营</a><div><a href="" target="_top">站长新闻</a><a href="" target="_top">新手教程</a><a href="" target="_top">经验心得</a><a href="" target="_top">访谈</a><a href="" target="_top">推广策划</a><a href="" target="_top">搜索SEO</a></div></li></ul><ul><li onmouseover="displaySubMenu(this)" onmouseout="hideSubMenu(this)")> <a href="/class_11.html" target="_top">互联网</a><div><a href="/class_12.html" target="_top">电子商务</a><a href="/class_13.html" target="_top">站长休闲</a><a href="/class_14.html" target="_top">网络编程</a></div></li><li onmouseover="displaySubMenu(this)" onmouseout="hideSubMenu(this)")>| <a href="/class_17.html" target="_top">国内新闻</a><div><a href="/class_19.html" target="_top">社会新闻</a><a href="/class_18.html" target="_top">娱乐新闻</a></div></li></li></ul></div> Reply to discussion (solution)
What effect do you expect
What effect do you expect
The effect is The drop-down menu is not blocked by the ul below. The code is normal in ie8. There is a problem with ie6 and ie7
Ie6 has a z-index bug. I deleted part of your code:
<!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>无标题文档</title> <style> /*导航*/ #webmenu {width:950px;margin:4px auto;} #webmenu ul {width:100%;padding:0px;height:27px;background: #000000;list-style:none;} #webmenu li {float:left;font-size:14px;padding:0;background:#F00;margin-right:5px;position:relative;} a.an{background-color:#fff;} .c{display:none; position:absolute; top:25px; left:0; width:100%;border: 1px solid #000000;border-left: 6px solid #000000; background: #ddd;z-index:9999;float:left;} .s li{z-index:1;} .d li{z-index:2;} </style> <script> function displaySubMenu(li){ var subMenu = li.getElementsByTagName("div")[0]; subMenu.style.display = "block";} function hideSubMenu(li){ var subMenu = li.getElementsByTagName("div")[0]; subMenu.style.display = "none";} </script> </head> <body> <div id="webmenu"> <ul class="d"> <li> <a href="/" target="_top">首页</a> </li> <li onmouseover="displaySubMenu(this)" onmouseout="hideSubMenu(this)"> | <a class="an" href="" target="_top">网站运营</a> <div class="c"> <a href="" target="_top">站长新闻</a> <a href="" target="_top">新手教程</a> <a href="" target="_top">经验心得</a> <a href="" target="_top">访谈</a> <a href="" target="_top">推广策划</a> <a href="" target="_top">搜索SEO</a> </div> </li> </ul> <ul class="s"> <li onmouseover="displaySubMenu(this)" onmouseout="hideSubMenu(this)"> <a class="an" href="/class_11.html" target="_top">互联网</a> <div class="c"> <a href="/class_12.html" target="_top">电子商务</a> <a href="/class_13.html" target="_top">站长休闲</a> <a href="/class_14.html" target="_top">网络编程</a> </div> </li> <li onmouseover="displaySubMenu(this)" onmouseout="hideSubMenu(this)"> | <a class="an" href="/class_17.html" target="_top">国内新闻</a> <div class="c"> <a href="/class_19.html" target="_top">社会新闻</a> <a href="/class_18.html" target="_top">娱乐新闻</a> </div> </li> </ul> </div> </body> </html> 
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