jQuery实现分章节锚点“回到顶部”动画特效代码
本文实例讲述了jQuery实现分章节锚点“回到顶部”动画特效。分享给大家供大家参考,具体如下:
这里演示基于jquery实现的分章节动画实现“回到顶部”的效果,可通过 网页顶部的数字序号直接进入网页的章节,当处于第二章节的时候,网页右侧会显示竖排的控制按钮,点击按钮会回到相应章节,其实也就是定义好的锚点,当然也可回到顶部,网页上见到的回顶部大多不是这个样子,所以本款效果还挺新颖。
运行效果截图如下:
在线演示地址如下:
http://demo.jb51.net/js/2015/jquery-turn-top-focus-style-demo/
具体代码如下:
<!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> <title>jQuery锚点带动画跳转特效</title> <script src="jquery-1.6.2.min.js" type="text/javascript"></script> <style> .gray { -webkit-filter: grayscale(100%); -moz-filter: grayscale(100%); -ms-filter: grayscale(100%); -o-filter: grayscale(100%); filter: grayscale(100%); filter: gray; } /* reset */ body, div, dl, dt, dd, ul, ol, li, h1, h2, h3, h4, h5, h6, p , form, fieldset, legend, input, button, textarea, th, td { margin:0; padding:0; } table { border-collapse:collapse; border-spacing:0; } fieldset, img { border:0; } ul,li { list-style:none; } body { background: #f1f1f1; color: #666; font:12px/1.7 Helvetica,Arial,Tahoma,sans-serif,"\5B8B\4F53"; } .row:after { clear:both; content:'\0020'; display:block; height:0; } .row { zoom:1; } /*链接颜色*/ a,button{outline:none; /*移除虚线框 IE8,FF有用*/ hide-focus: expression(this.hideFocus=true); /*IE6、IE7*/} a{ color:#999; text-decoration:none; } a:hover{ color:#be0000; text-decoration: underline; } .fst{ font-family: "\5B8B\4F53"; } h1,h2,h3,h4,h5,h6{font-family:\5FAE\8F6F\96C5\9ED1; font-size: 16px;} /* end reset */ .row{ width:1000px; margin:0 auto; } /*模板头部,所有专题页面公用*/ .index_nav{width:575px; height: 70px; margin: 0 auto; padding-left: 5px; background: #fff;} .index_nav li{width: 115px; height: 70px; float: left;} .index_nav li a{display: block; float: left; width: 70px;height: 70px; background:url(images/index_nav.gif) 0 0 no-repeat; text-align: center; color: #e02800;} .index_nav li a i{display: block; padding-top: 12px; height: 22px; line-height: 22px;} .index_nav li a strong{font-family: Arial, Helvetica, sans-serif; font-weight: bold; font-size: 24px; display: block; height: 30px; line-height: 20px;} .index_nav li a:hover{background-position: 0 -70px; color: #fff; text-decoration: none;} .h15{height: 15px; overflow: hidden;} .mainpage{width: 1000px; height:1000px;} h2{font-size: 24px; text-align: center; color: #333; font-weight: bold;} .mainpage p{width: 650px; margin: 0 auto; color: #fff; font-size: 16px; padding: 50px 0 50px;} .mainpage1{background: #fe6400;} .mainpage2{background: #be0000;} .mainpage3{background: #ccc;} .mainpage4{background: #0093dd;} .mainpage5{background: #a8cf33;} *html{background-image:url(about:blank);background-attachment:fixed;}/*低版本浏览器防止抖动的,必须有*/ #tbox{width:30px; height:200px; float:right; position:fixed; display: none; _position:absolute; _bottom:auto; _top:expression(eval(document.documentElement.scrollTop+document.documentElement.clientHeight-this.offsetHeight-(parseInt(this.currentStyle.marginTop,10)||0)-(parseInt(this.currentStyle.marginBottom,10)||0))); _margin-bottom:50px; }/*这个只能改宽高其他的不要修改,需要滚动的内容都要放在这个div里面*/ .taoba{display:block; background:#c2c2c2; width:30px; height:30px; margin-bottom:4px;text-align: center; color: #fff; line-height: 30px; overflow: hidden;cursor:pointer} .taoba:hover{background:#ff4200; text-decoration: none; color: #fff;} #gotop{display:block; width:30px; height:30px; text-indent:-9999px; overflow: hidden; color: #fff; background:url(images/top_icon.gif) no-repeat; position:absolute; display:none; cursor:pointer} /*这个样式随便改,必须有position:absolute; */ #gotop:hover{background-position: 0 -30px;} </style> <script type="text/javascript"> jQuery(document).ready(function($) { $(".index_nav li a").click(function(event) { var index=this.title var id='#'+'index_'+index $("html,body").animate({scrollTop: $(id).offset().top}, 1000); }); $(".taoba").click(function(event) { var index=this.title var id='#'+'index_'+index $("html,body").animate({scrollTop: $(id).offset().top}, 1000); }); function a(x,y){ l = $('#main').offset().left; w = $('#main').width(); $('#tbox').css('left',(l + w + x) + 'px'); $('#tbox').css('bottom',y + 'px'); }//获取#tbox的div距浏览器底部和页面内容区域右侧的距离函数#main为页面的可视宽度 $(function() { $(window).scroll(function(){ t = $(document).scrollTop(); if(t>500){ $('#tbox').show(); }else{ $('#tbox').hide(); } if(t > 50){ $('#gotop').fadeIn('slow'); }else{ $('#gotop').fadeOut('slow'); } }) a(10,100);//#tbox的div距浏览器底部和页面内容区域右侧的距离 $('#gotop').click(function(){ $('body,html').animate({ scrollTop: 0 }, 800);//点击回到顶部按钮,缓懂回到顶部,数字越小越快 return false; }) }); }); </script> </head> <body> <div class="indexnav_wrap"> <ul class="index_nav"> <li><a href="javascript:void(0)" title="1"><i>活动</i><strong>1</strong></a></li> <li><a href="javascript:void(0)" title="2"><i>活动</i><strong>2</strong></a></li> <li><a href="javascript:void(0)" title="3"><i>活动</i><strong>3</strong></a></li> <li><a href="javascript:void(0)" title="4"><i>活动</i><strong>4</strong></a></li> <li><a href="javascript:void(0)" title="5"><i>活动</i><strong>5</strong></a></li> </ul> </div> <div class="h50"></div> <div class="row" id="main"> <h2 id="index_1">这是第一个活动页</h2> <div class="mainpage mainpage1"></div> </div> <div class="h15"></div> <div class="row"> <h2 id="index_2">这是第二个活动页</h2> <div class="mainpage mainpage2"></div> </div> <div class="h15"></div> <div class="row"> <h2 id="index_3">这是第三个活动页</h2> <div class="mainpage mainpage3"></div> </div> <div class="h15"></div> <div class="row"> <h2 id="index_4">这是第四个活动页</h2> <div class="mainpage mainpage4"></div> </div> <div class="h15"></div> <div class="row"> <h2 id="index_5">这是第五个活动页</h2> <div class="mainpage mainpage5"></div> </div> <div id="tbox"><!-- 这个必须有 id="tbox"--> <a class="taoba" href="javascript:void(0)" title="1">1</a> <a class="taoba" href="javascript:void(0)" title="2">2</a> <a class="taoba" href="javascript:void(0)" title="3">3</a> <a class="taoba" href="javascript:void(0)" title="4">4</a> <a class="taoba" href="javascript:void(0)" title="5">5</a> <a id="gotop" href="javascript:void(0)" title="回到顶部">回到顶部</a> <!-- 这个也是id="gotop" --> </div> </div> </body> </html>
希望本文所述对大家jQuery程序设计有所帮助。
赞 (0)