<!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>fixedBox</title> <script type="text/javascript" src="https://www.haiqiancun.com/xWidget-0.1/xcore.js"></script> <style> *{margin:0px;padding:0px;} body{height:3000px;} </style> <script> $(function() { $(".fixedBox").each(function() { var self = $(this); var id = self.attr("id") || 'fixedBox_' + Math.round(Math.random() * 100000); self.attr("id", id); var fb = $("#" + id); var mt = Math.floor(fb.css("margin-top").substring(2, 0)) || 0; var cd = $('<divstyle") + '"> </div>'); fb.after(cd); fb.css({ 'z-index': 999 }).data({ 'top': fb.offset().top, 'left': fb.offset().left }); $(window).scroll(function() { var pt = fb.data('top'); var pl = fb.data('left'); var st = $(document).scrollTop() - 10; var h = $(document).height(); if (st > pt || st == pt) { cd.show(); if ((st + self.outerHeight()) > h) { self.css({ position: 'fixed', top: (h - (st + self.outerHeight())) }); } else { self.css({ position: 'fixed', top: 0 - mt }); } } else { cd.hide(); self.css({ position: 'relative', top: 0 }); } }) }) }) </script> </span> </head> <body> <div> <div> <script> $(function(){ $(".fixedBox").each(function(){ var self= $(this); var id = self.attr("id")||'fixedBox_'+Math.round(Math.random()*100000); self.attr("id",id); var fb = $("#"+id); var mt = Math.floor(fb.css("margin-top").substring(2,0))||0; var cd = $('<divstyle")+'"> </div>'); fb.after(cd); fb.css({'z-index':999}).data({'top':fb.offset().top,'left':fb.offset().left}); $(window).scroll(function(){ var pt = fb.data('top'); var pl = fb.data('left'); var st = $(document).scrollTop()-10; var h = $(document).height(); if(st>pt||st==pt){ cd.show(); if((st+self.outerHeight())>h){ self.css({position:'fixed',top:(h-(st+self.outerHeight()))}); }else{ self.css({position:'fixed',top:0-mt}); } }else{ cd.hide(); self.css({position:'relative',top:0}); } }) }) }) </script> </div> 例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例 </div> </body> </html>
fixedBox固定div漂浮代码支持ie6以上大部分主流浏览
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