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  • 每日案例4

    <!DOCTYPE html>
    <html>
    <head>
        <meta charset="utf-8">
        <title>视觉滚动</title>
        <style type="text/css">
        *{padding: 0;margin: 0;}
        img{max- 100%;}
        .article{z-index: 2;margin: 0 auto;}
        .content{position: relative;margin: 0 auto;background-repeat: no-repeat;background-position: top center;background-attachment: fixed;background-size: cover;height: 1030px;padding-top: 50px;overflow: hidden;}
        .content-1{background-image: url(http://www.w3cfuns.com/data/attachment/album/201408/21/172602dj4h3k9406d9ud97.jpg);}
        .content-2{background-image: url(http://www.w3cfuns.com/data/attachment/album/201408/21/172603re0t33x1lm9attmt.jpg);}
        .content-3{background-image: url(http://www.w3cfuns.com/data/attachment/album/201408/21/172604wkfusrkbrrdzbqck.jpg);}
        .content h1{font: 700 60px Tahoma;padding-left: 20px;}
        .animg{position: absolute;left:  -1000px;top: 160px;-webkit-transition-duration:1s;}
        .detailtitle{position: absolute;left: 0;top: -100px;padding: 10px 20px;background: #333;color: #fff;font-size: 24px;-webkit-transition-duration:2s;}
        .detail{position: absolute;left: 2000px;top: 620px; 100%;font-size: 16px;-webkit-transition-duration:2s;}
        .detailtitle-3{top: 550px;left: -1000px;}
        .content-focus .animg{left: 0;top: 160px;left: 20px;}
        .content-focus .detail{left: 0;top: 570px;left: 20px;}
        .content-focus .detailtitle{top: 500px;left: 20px;}
        .content-focus .detailtitle-3{left: 20px;}
        .slidecount{position: fixed;right: 10px;bottom: 50%;z-index: 1;}
        .slidecount li{margin-bottom: 10px;}
        .slidecount li a{display: block; 10px;height: 10px;background: gray;border: 3px solid white;overflow: hidden;line-height: 100px;border-radius: 10px;}
        .slidecount li a:hover{text-decoration: none;background: white;border: 3px solid orange;}
        .slidecount li .focus a{background: orange;border: 3px solid orange;}
        </style>
    </head>
    <body>
        <div class="article" style="height:2700px;">
            <div class="content content-1" id="n1">
                <h1>风景一</h1>
                <img class="animg"src="http://images.cnblogs.com/cnblogs_com/sdgjytu/606940/o_1344651748384.jpg" width="500" height="313"/>
                <p class="detailtitle">励志名言</p>
                <p class="detail">向着目标奔跑,何必在意折翼的翅膀,只要信心不死,就看的见方向,顺风适合行走,逆风更适合飞翔,人生路上什么都不怕,就怕自己投降。</p>
            </div>
            <div class="content content-2 content-focus" id="n2">
            <h1>风景二</h1>
            <img class="animg" src="http://images.cnblogs.com/cnblogs_com/sdgjytu/606940/o_1319163709435.jpg" width="500" height="313"  />
            <p class="detailtitle">智慧人生</p>
            <p class="detail">
               淡淡的日子淡然地过。生活如水,人生似茶,再好的茶放到水中一泡,时间久了,也就淡了。也许是棱角平了,或许是成熟稳重了,脚步越来越踏实,日子越来越平淡。人生步入另外一种境界,——淡然。
            </p>
        </div>
        <div class="content content-3" id="n3">
            <h1>风景三</h1>
            <img class="animg" src="http://images.cnblogs.com/cnblogs_com/sdgjytu/606940/o_1319175496381.jpg" width="500" height="313"  />
            <p class="detailtitle detailtitle-3">名言警句</p>
            <p class="detail">
                 无论今后的道路多么坎坷,只要抓住今天,迟早会在奋斗中尝到人生的甘甜。抓住人生中的一分一秒,胜过虚度中的一月一年!
            </p>
        </div>
        </div>
        <div class="slidecount">
            <ul>
                <li class="focus"><a href="javascript:;"onclick="scroll('n1')">1</a></li>
                <li><a href="javascript:;"onclick="scroll('n2')">2</a></li>
                <li><a href="javascript:;"onclick="scroll('n3')">3</a></li>
            </ul>
        </div>
        <script type="text/javascript" src="http://code.jquery.com/jquery-1.7.2.min.js"></script>
        <script type="text/javascript">
        $(function(){
            var oWinTop;
            var oContentH=$(".content").height();
            var oContentLen=$(".content").length;
            var vIndex=0;
            $(".article").css("height",oContentH*oContentLen);
            $(".content:eq("+vIndex+")").addClass("content-focus");
            $(window).scroll(function(){
                oWinTop=$(window).scrollTop();
                $(".slidecount li").removeClass("focus");
                $(".content").removeClass("content-focus");
                if(oWinTop>=0&&oWinTop<oContentH){
                    vIndex=0;
                    $(".slidecount li:eq("+vIndex+")").addClass("focus");
                    $(".content:eq("+vIndex+")").addClass("content-focus");
                }else if(oWinTop>=oContentH&&oWinTop<(oContentH*2)){
                    vIndex=1;
                    $(".slidecount li:eq("+vIndex+")").addClass("focus");
                    $(".content:eq("+vIndex+")").addClass("content-focus");
                }else{
                    vIndex=2;
                    $(".slidecount li:eq("+vIndex+")").addClass("focus");
                    $(".content:eq("+vIndex+")").addClass("content-focus");
                }
            })
        })
        </script>
        <script type="text/javascript">
        jQuery.getPos=function(e){
            var l=0;
            var t=0;
            var w=jQuery.intval(jQuery.css(e,'width'));
            var h=jQuery.intval(jQuery.css(e,'height'));
            var wb=e.offsetWidth;
            var hb=e.offsetHeight;
            while(e.offsetParent){
                l+=e.offsetLeft+(e.currentStyle?jQuery.intval(e.currentStyle.borderLeftWidth):0);
                t += e.offsetTop  + (e.currentStyle?jQuery.intval(e.currentStyle.borderTopWidth):0);
                e=e.offsetParent;
            }
                l+= e.offsetLeft + (e.currentStyle?jQuery.intval(e.currentStyle.borderLeftWidth):0);
                t+= e.offsetTop  + (e.currentStyle?jQuery.intval(e.currentStyle.borderTopWidth):0);
                return {x:l, y:t, w:w, h:h, wb:wb, hb:hb};
        }
        jQuery.getClient=function(e){
            if(e){
                w = e.clientWidth;
                h = e.clientHeight;
            }else{
                w = (window.innerWidth) ? window.innerWidth : (document.documentElement && document.documentElement.clientWidth) ? document.documentElement.clientWidth : document.body.offsetWidth;
                h = (window.innerHeight) ? window.innerHeight : (document.documentElement && document.documentElement.clientHeight) ? document.documentElement.clientHeight : document.body.offsetHeight;
            }
             return {w:w,h:h};
        }
        jQuery.getScroll = function (e){
             if(e){
                t = e.scrollTop;
                l = e.scrollLeft;
                w = e.scrollWidth;
                h = e.scrollHeight;
             }else{
                if(document.documentElement && document.documentElement.scrollTop){
                     t = document.documentElement.scrollTop;
                     l = document.documentElement.scrollLeft;
                     w = document.documentElement.scrollWidth;
                     h = document.documentElement.scrollHeight;
                }else if(document.body){
                    t = document.body.scrollTop;
                    l = document.body.scrollLeft;
                    w = document.body.scrollWidth;
                    h = document.body.scrollHeight;
                }
             }return { t: t, l: l, w: w, h: h };
        }
        jQuery.intval=function (v){
            v = parseInt(v);
            return isNaN(v) ? 0 : v;
        }
        jQuery.fn.ScrollTo = function(s){
            o = jQuery.speed(s);
            return this.each(function(){
                new jQuery.fx.ScrollTo(this, o);
            })
        }
        jQuery.fx.ScrollTo = function (e, o){
             var z = this;
              z.o = o;
              z.e = e;
              z.p = jQuery.getPos(e);
              z.s = jQuery.getScroll();
              z.clear = function(){clearInterval(z.timer);z.timer=null};
              z.t=(new Date).getTime();
              z.step = function(){
                var t = (new Date).getTime();
                var p = (t - z.t) / z.o.duration;
                if (t>=z.o.duration+z.t) {
                    z.clear();
                    setTimeout(function(){z.scroll(z.p.y, z.p.x)},13);
                }else{
                    st = ((-Math.cos(p*Math.PI)/2) + 0.5) * (z.p.y-z.s.t) + z.s.t;
                    sl = ((-Math.cos(p*Math.PI)/2) + 0.5) * (z.p.x-z.s.l) + z.s.l;
                    z.scroll(st, sl);
                }
              }
               z.scroll = function (t, l){window.scrollTo(l, t)};
               z.timer=setInterval(function(){z.step();},13);
        }
        </script>
        <script type="text/javascript">
        function scroll(id){
            $("#"+id).ScrollTo(2000);
        }
        $(function(){
            $('.slidecount li').click(function(){
                $(this).addClass('focus').siblings().removeClass();
            })
        })
        </script>
    </body>
    </html>

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  • 原文地址:https://www.cnblogs.com/sdgjytu/p/3933018.html
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