jQuery拉动页面固定顶部显示，自动消失

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引入JS
- 3.0.0 2.2.0 2.1.4 2.1.3 2.1.2 2.1.1 2.1.0 2.0.3 2.0.2 2.0.1 2.0.0 1.12.0 1.11.3 1.11.2 1.11.1 1.11.0 1.10.2 1.10.1 1.10.0 1.9.1 1.9.0 1.8.3 1.8.2 1.8.1 1.8.0 1.7.2 1.7.1 1.7 1.6.4 1.6.2 1.6.1 1.4.4 1.4.3 1.4.2 1.4.1 1.4.0
- 1.7.3 1.7.2 1.7.1.0 1.7.0.0
- 2.0.0-beta.0 2.0.0-alpha.55 1.5.0-rc.0 1.4.8 1.4.0 1.3.20 1.2.29 1.1.5 1.0.8
- 1.8.3 1.7.0 1.6.0 1.5.2 1.4.4 1.3.3 1.2.4 1.1.7
- 1.10.4 1.9.7 1.8.10 1.7.8 1.6.3 1.5.4 1.4.6 1.3.3
- core1.6.0 core-compat1.6.0 core1.5.2 core-compat1.5.2 core-full-compat-yc1.4.5 core-full-compat1.4.5 core-full-nocompat-yc1.4.5 core-full-nocompat1.4.5
- 1.4.2 1.4.1 1.4.0 1.3.0 1.2.0 1.1.0
- 3.7.3 3.7.2 3.7.1 3.7.0 3.7 3.6.2 3.6.1 3.6

引入框架
- 1.4.5 1.4.4 1.4.3 1.4.2 1.4.1 1.4.0 1.3.2
- 1.11.4 1.11.3 1.11.2 1.11.1 1.11.0 1.10.4 1.10.3 1.10.2
- 3.3.6 3.3.5 3.3.0 3.2.0 2.3.2

汉王

HTML代码

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<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>回到顶部：哭泣的小丑</title>
<script type="text/javascript" src="//apps.bdimg.com/libs/jquery/1.11.3/jquery.min.js"></script>

<style>
html, body, div, span, applet, object, iframe,h1, h2, h3, h4, h5, h6, p, blockquote, pre,a, abbr, acronym, address, big, cite, code,del, dfn, em, img, ins, kbd, q, s, samp,small, strike, strong, sub, sup, tt, var,b, u, i, center,dl, dt, dd, ol, ul, li,fieldset, form, label, legend, input,table, caption, tbody, tfoot, thead, tr, th, td,article, aside, canvas, details, embed,figure, figcaption, footer, header, hgroup,menu, nav, output, ruby, section, summary,time, mark, audio, video {margin: 0;padding: 0;border: 0;font-size: 100%;}
article, aside, details, figcaption, figure,footer, header, hgroup, menu, nav, section {display: block;float:left;}select, input, button,button img, label {vertical-align: middle;}body {font:normal 12px/1.5 "Microsoft Yahei","微软雅黑",Tahoma,Arial,Helvetica,STHeiti; webkit-font-smoothing:antialiased;-moz-font-smoothing: subpixel-antialiased; color:#666;}ol, ul {list-style: none;}blockquote, q {quotes: none;}blockquote:before, blockquote:after,q:before, q:after {content: '';content: none;}table {border-collapse: collapse;border-spacing: 0;}em {font-style: normal}select, input, button, button img, label {vertical-align:middle;}input {font-family:"Microsoft Yahei","微软雅黑";webkit-font-smoothing:antialiased;-moz-font-smoothing: subpixel-antialiased}input, input:focus, button, button:focus, select,textarea, textarea:focus {outline:none; -moz-outline:none; -webkit-outline:none; }input:focus { outline:none; -moz-outline:none; -webkit-outline:none; }textarea {resize:none;}a {color:#666; text-decoration:none;} a:hover {text-decoration:underline;}a:focus {outline:none; -moz-outline:none;-webkit-outline:none;}body {min-width: 960px;}
</style>


<style>
body{background:#e7e7e7;}
.clearfix:before, .clearfix:after, .container_24:before, .container_24:after {
 content: '.';   display: block;   overflow: hidden;   visibility: hidden;   font-size: 0;   line-height: 0;   width: 0;   height: 0;}
.clearfix:after, .container_24:after {   clear: both; }
.Xc_main{width:750px;margin:0 auto;position:relative;}
.Xc_left{float:left;}
.Xc_left h1{font-size:24px;padding-top:25px;}
.Xc_right{float:right;width:600px;}
.Xc_right .Xc_list{margin:10px 0 10px 0;}
.Xc_list_top,.Xc_list_main{background:#fff;padding:10px;border:1px solid #ccc;}
.Xc_list_top{margin-bottom:10px;}
.Xc_gg{width:90px;height:90px;border:1px solid #ccc;background:#fff;text-align:center;}
.Xc_bottom{height:650px;background:#fff;padding:10px;border:1px solid #ccc;position:relative;}
</style>

</head>
<script>
$(function () {
	$(".Xc_list_top").css("width",$(".Xc_list_main").width());
    var resetRightPanelPostion = function () {
        var msie6 = $.browser.msie && $.browser.version == '6.0' && $.browser.version < 7;
        if ($.browser.safari) {
            bodyelem = $("body");
        } else {
            bodyelem = $("html,body");
        }
        var bodyTop = bodyelem.scrollTop();
        var top = $(".Xc_left").offset().top;
        //var t = $("#public_footer").offset().top;
        var t = $("#footerDestinationBox").offset().top;
        //var bottom = $("#footerDestinationBox").offset().top;
		for(var i = 0 ; i < $(".Xc_list .Xc_list_top").length ; i++){
			if (bodyTop >= top && ((bodyTop + $(".Xc_left").outerHeight()) < t)) {
				if (!msie6) {
	
					if (bodyTop + $(".Xc_gg").outerHeight() >= t) {
						$(".Xc_gg").removeClass('fixed').css({
							"position": "absolute",
							"top": t - $(".Xc_gg").outerHeight() + "px"
						});
					} else {
						$(".Xc_gg").css({
							"position": "fixed",
							"top": 0
						});
						
					}
				}
			} else {
				if (!msie6) {
					$(".Xc_gg").css({
						"position": "static"
					});
				}
			}
					
			if(bodyTop>$(".Xc_list").eq(i).offset().top){
				$(".Xc_list_top").eq(i).css({position:"absolute",top:top-168});
			 
			}
			if(bodyTop>$(".Xc_list").eq(i).offset().top){
				$(".Xc_list_top").eq(i).css({position:"fixed",top:0});
			  
			}
			if(bodyTop<=$(".Xc_list").eq(i).offset().top){
				$(".Xc_list_top").eq(i).css({position:"static",top:0});
			}
			
		}
    };
    window.onload = function () {
        if ($(".Xc_gg").length) {
            resetRightPanelPostion();
            $(window).scroll(function () {
                resetRightPanelPostion();
            });
        }
    }
	
s
})
</script>

<body>
<div class="Xc_main clearfix">
	<div class="clearfix" style="margin-top:90px;float:left;">
        <div class="Xc_left">
            <div class="Xc_gg">
                <h1>小丑</h1>
                <div style="margin-top:40px;">Q群:<em style="color:#0069D6;">150508281</em></div>
            </div>
            
        </div>
    </div>
    <div class="Xc_right clearfix">
    	<div class="Xc_list">
        	<div class="Xc_list_top" id="Xc_list_top">top 1</div>
            <div class="Xc_list_main" style="height:300px;background:#fff;">
            
            </div>
        </div>
        <div class="Xc_list">
        	<div class="Xc_list_top">top 2</div>
            <div class="Xc_list_main" style="height:300px;background:#fff;">
            
            </div>
        </div>
        <div class="Xc_list">
        	<div class="Xc_list_top">top 3</div>
            <div class="Xc_list_main" style="height:300px;background:#fff;">
            
            </div>
        </div>
        <div class="Xc_list">
        	<div class="Xc_list_top">top 4</div>
            <div class="Xc_list_main" style="height:300px;background:#fff;">
            
            </div>
        </div>
        <div class="Xc_list">
        	<div class="Xc_list_top">top 5</div>
            <div class="Xc_list_main" style="height:300px;background:#fff;">
            
            </div>
        </div>
        <div class="Xc_list">
        	<div class="Xc_list_top">top 6</div>
            <div class="Xc_list_main" style="height:300px;background:#fff;">
            
            </div>
        </div>
    </div>
</div>
<div class="Xc_bottom clearfix"  id="footerDestinationBox">
	<div style="position:absolute;top:40px;right:50px;"> by 蓝色理想 @哭泣的小丑</div>
</div>
</body>
</html>

CSS代码

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JS代码

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简介

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名称

jQuery拉动页面固定顶部显示，自动消失

分类

网站常用

描述

jQuery拉动页面固定顶部显示，自动消失，可能ie浏览器下有问题，不过火狐什么的都可以运行看效果，一个简单的网页特效，也是很常用的“回到顶部”效果，有兴趣的看一下。