jQuery拉动页面固定顶部显示，自动消失

2024-09-05 12:18:30

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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。

<!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 src="/ajaxjs/jquery-1.6.2.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>

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