在一个页面放2个悬浮框，悬浮框随页面的上下滚动有上下波动的效果，最终固定在同一位置
效果展示如下所示：
代码如下：
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>JavScript页面悬浮框- 何问起</title><base target="_blank" /> <style> body { height: 2000px; } #div1 { width: 100px; height: 150px; background: red; position: absolute; right: 0; top:200px; } #div2 { width: 200px; height: 200px; background: green; position: absolute; left: 0; top: 200px; }a{color:white} </style> </head> <body> <div id="div1"><a href="http://hovertree.com">何问起</a> <a href="http://hovertree.com/texiao/">特效</a></div> <div id="div2"><a href="http://hovertree.com/h/bjaf/mbrpxe4o.htm">原文</a> <a href="http://hovertree.com/texiao/jsstudy/1/">效果</a> </div> <div id="hovertree"></div> <div>在一个页面放2个悬浮框，悬浮框随页面的上下滚动有上下波动的效果，最终固定在同一位置</div> <script> var h_div1 = document.getElementById('div1'), h_div2 = document.getElementById('div2'); var h_hvttop = 200; window.onscroll = function () { HoverTreeMove(h_div1, h_hvttop) HoverTreeMove(h_div2, h_hvttop) //显示信息 var h_scrollTop = document.documentElement.scrollTop || document.body.scrollTop;//滚动的距离 var h_hovertree = document.getElementById('hovertree'); h_hovertree.innerHTML = h_div1.offsetTop + " hovertree<br /> " + h_scrollTop + "<br />" + h_div1.style.top; }; function HoverTreeMove(obj,top) { var h_scrollTop = document.documentElement.scrollTop || document.body.scrollTop;//滚动的距离 var h_buchang = 20; if (obj.offsetTop < h_scrollTop + top - h_buchang) { obj.style.top = obj.offsetTop + h_buchang + "px"; setTimeout(function () { HoverTreeMove(obj, top); }, 80); } else if (obj.offsetTop > h_scrollTop + top + h_buchang) { obj.style.top = (obj.offsetTop - h_buchang) + "px"; setTimeout(function () { HoverTreeMove(obj, top); }, 80); } else { obj.style.top = h_scrollTop + top + "px"; } } HoverTreeMove(h_div1, 200) HoverTreeMove(h_div2, 200) </script> </body> </html>
下面给大家分享一段代码页面顶端固定div，不随滚动条移动，提示浏览器信息
例子1：
<html> <head> <style type="text/css"> #topNavWrapper { height: 29px; margin: 0px auto; min-width:1000px; z-index:100; _position: relative ; _top:0px; } #topNav { width:100%; display: block; z-index: 100; overflow: visible; position: fixed; top: 0px; _position: absolute; _top: expression(documentElement.scrollTop-5 + "px"); background-color:#EBEBEB; border-bottom-style:solid; border-bottom-width:1px; border-bottom-color:#D0D0D0; height: 28px; min-width:1000px; } #top { margin: 0px auto; width:1000px; position:relative; } .left { left:5px; top:6px; width:200px; position:absolute; } .leftlx { left:205px; top:6px; width:300px; position:absolute; } .right { left:830px; top:6px; width:170px; position:absolute; } #top a { text-decoration: none; color:#747474; } #top a:hover { color: blue; text-decoration: underline; } </style> </head> <body> <div id="topNavWrapper"> <div id="topNav"> <div id="top"> <div>您好!欢迎来到....^ ^</div><div><a href="about.aspx">[联系我们]</a>客户服务热线: 400-699-1111</div> <div> <table cellpadding="0" cellspacing="0"><tr><td><a href="#">简体中文</a></td><td>|</td><td><a href="big5.html">繁体中文</a></td> <td>|</td><td><a onclick='window.external.addFavorite("http://www.xxxx.com","xxxx")' href="#">收藏本站</a></td></tr></table> </div> </div> </div> </div> </body> </html>
例子2：
<style type="text/css"> { margin: 0px; padding: 0px; } body { background-attachment: fixed; /* prevent screen flash in IE6 */ } #topNavWrapper { width: 100%; text-align: left; height: 28px; margin: 0px auto; z-index:100; _position: relative ; _top:0px; } #topNav { width: 100%; float: left; display: block; z-index: 100; overflow: visible; position: fixed; top: 0px; /* position fixed for IE6 */ _position: absolute; _top: expression(documentElement.scrollTop + "px"); height: 28px; } </style>
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