Introducing a jquery special effect - seamless upward scrolling list

Effect presentation

The entire list moves up the height of an item at the set time interval

html structure:

  <div class="slide-title">
        <span>title1</span>
        <span>title2</span>
        <span>title3</span>
   </div>
   <div class="slide-container"><!--css设置时，注意高度是显示多少个item,如：item的高度是30px，显示3个，高度则是 3*30 = 90px -->
        <ul class="slide-list js-slide-list">
            <li class="odd"><span>item1</span><span>item1</span><span>item1</span></li>
            <li class="even"><span>item2</span><span>item2</span><span>item2</span></li>
            <li class="even"><span>item2</span><span>item2</span><span>item2</span></li>
        </ul>
   </div>

Implementation idea:
Get js-slide -The height of the first li element under the list, its height or marginTop will be animated changed from present to nonexistent, the code is as follows:

var doscroll = function(){    var $parent = $('.js-slide-list');    var $first = $parent.find('li:first');    var height = $first.height();    $first.animate({        height: 0   //或者改成： marginTop: -height + 'px'        }, 500, function() {// 动画结束后，把它插到最后，形成无缝        $first.css('height', height).appendTo($parent);       // $first.css('marginTop', 0).appendTo($parent);    });};setInterval(function(){doscroll()}, 2000);
Demo1Demo2

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