skrollr相对不工作正常

你好我尝试了解sckrollr但我似乎在相对使用失败，有什么即时试图得到的是：skrollr相对不工作正常

有，里面还
当一些元素的盒子X号该元素锚到达视口锚做的东西

我不明白我上面的代码，并skrollr做作为洙AI开始滚动页面第二的.text元素的动画，他should't只是让仅当元素锚点到达视口锚点时动画要么？

我只是不明白

<style> 
     body{height:100% !important;} /*SOLUTION FOR THIS PROBLEM*/ 
     .paralaxelem2{width:100%;height:100%;background:50% 0 no-repeat fixed;background-size:100% 100%;} 
     .text{margin:0 auto;width:500px;padding:150px 0 0 0;position:relative;} 
     .text h1{padding:0px;margin:0px;text-transform:uppercase;color:#000;} 
     .text p{background-color:#000;color:#fff;padding:15px;} 
    </style> 


<section class="paralaxelem2" style="background-image:url('/images/fundos/bg_dummy_2.jpg');"> 
    <div class="text" data-0-top-top="opacity:1;" data--300-top-top="opacity:0;"> 
    <h1>SOme Home page title goes arround</h1> 
    <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Id, est, consectetur, officiis, soluta impedit eveniet esse iusto temporibus asperiores quasi quos mollitia voluptates rerum quae voluptatem amet quidem totam. Et!</p> 
    </div> 
</section> 


<section class="paralaxelem2" style="background-image:url('/images/fundos/bg_dummy_1.jpg');"> 
    <div class="text" data-bottom-top="opacity:1;padding-top:150px;" data-bottom-bottom="opacity:1;padding-top:600px;"> 
    <h1>SOme Home page title goes arround</h1> 
    <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Id, est, consectetur, officiis, soluta impedit eveniet esse iusto temporibus asperiores quasi quos mollitia voluptates rerum quae voluptatem amet quidem totam. Et!</p> 
    </div> 
</section> 


<section class="paralaxelem2" style="background-image:url('/images/fundos/bg_dummy_3.jpg');"> 
    <div class="text"> 
    <h1>SOme Home page title goes arround</h1> 
    <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Id, est, consectetur, officiis, soluta impedit eveniet esse iusto temporibus asperiores quasi quos mollitia voluptates rerum quae voluptatem amet quidem totam. Et!</p> 
    </div> 
</section>

来源

2013-10-18 Emanuel Ralha