下拉透明的菜单代码[网页特效] dn001 2009-06-21 08:17:33 在网页中弹出一个小的警告小窗口,有的网站用到这效果了!希望大家喜欢 <!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>knowsky.com</title> <style> *{ padding:0; margin:0; font-size:12px;} #bg{background:#000000;opacity: 0.5;-moz-opacity:0.5; filter:alpha(opacity=50); width:100%; height:100%;position:absolute; top:0; left:0} #info{height:0px; width:0px;top:50%; left:50%;position:absolute; line-height:1.7} #center{background:#fff;border:1px solid #217AC1; width:300px; height:100px; position:absolute; margin:-50px -150px;} #center strong{ display:block; padding:2px 5px; background:#EBF4FC; color:#519FEE;} #center p{padding:10px; text-align:center; color:#1C6FB8;} </style> </head> <body> <span id="boxs"></span> <a href="javascript:boxs(1);">点这里测试一下</a> <script> function boxs(v){ window.scrollTo(0,0); var bo = document.getElementsByTagName('body')[0]; var ht = document.getElementsByTagName('html')[0]; var boht = document.getElementById('boxs'); boht.innerHTML = ''; bo.style.height='auto'; bo.style.overflow='auto'; ht.style.height='auto'; if(v == 1){ bo.style.height='100%'; bo.style.overflow='hidden'; ht.style.height='100%'; boht.innerHTML = '<div id="bg"></div><div id="info"><div id="center"><strong>友情提醒:</strong><p><a href="javascript:boxs(0);">关闭knowsky.com</a></p></div></div>'; } } </script><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br />knowsky.com<br /><br /><br /><br /><br /><br />knowsky.com<br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br />knowsky.com<br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br />knowsky.com <a href="javascript:boxs(1);">点这里测试一下</a> </body> </html>