jquery锚点定位

来源：互联网发布：凌慕枫叶知秋小说82章编辑：程序博客网时间：2024/05/14 04:21

//christmas.css文件(样式)

@charset "utf-8";
/* CSS Document */

.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;}

//index.html

<!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>jquery锚点带动画跳转和返回顶部</title>

    <script src="jquery.min.js"></script>

    <link href="css/christmas.css" rel="stylesheet" type="text/css" />

    <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="h50"></div>

<div class="row" id="main">

    <h2 id="index_1">one</h2>

    <div class="mainpage mainpage1">

    </div>

</div>

<div class="h15"></div>

<div class="row">

    <h2 id="index_2">two</h2>

    <div class="mainpage mainpage2">

    </div>

</div>

<div class="h15"></div>

<div class="row">

    <h2 id="index_3">three</h2>

    <div class="mainpage mainpage3">

    </div>

</div>

<div class="h15"></div>

<div class="row">

    <h2 id="index_4">four</h2>

    <div class="mainpage mainpage4">

    </div>

</div>

<div class="h15"></div>

<div class="row">

    <h2 id="index_5">five</h2>

    <div class="mainpage mainpage5">

    </div>

</div>

<div 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> 

</div>

</body>

</html>

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