下面我来给各位介绍几个实例
代码如下 | 复制代码 |
<!doctype html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Document</title> <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.1/jquery.min.js"></script> <script> window.onload = function(){ </script> |
实例二
代码如下 | 复制代码 |
<!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> <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.5.1/jquery.min.js" type="text/javascript"></script> <script type="text/javascript"> $(function(){ $(window).scroll(function(){ var scrollTop = $(document).scrollTop(); var headheight = $(".head").height(); if(scrollTop >= headheight){ $("#fudong").addClass("fixed"); }else{ $("#fudong").removeClass("fixed"); } }) }) </script> <style> *{margin:0;padding:0} * html,* html body{background:url(about:blank) fixed} #wrap {width:950px;height:2000px;margin:0 auto;border:1px solid #000;position:relative} #wrap .head {height:200px;background:#AA5F55} #fudong {width:950px;height:30px;background:#ccc;} .fixed {position:fixed;_position:absolute;top:0;top:expression(eval(document.documentElement.scrollTop + 0))} </style> </head> <body> |
时间: 2024-08-01 14:34:57