原理：
复制一份需要无缝滚动的区域
<div class="page"> <ul class="box item1"> <li>1</li> <li>2</li> <li>3</li> <li>4</li> <li>5</li> <li>6</li> </ul> <ul class="box item2"> <li>1</li> <li>2</li> <li>3</li> <li>4</li> <li>5</li> <li>6</li> </ul></div>
animation css3动画
/*核心css*/@keyframes moveup{ 0% { transform: translateY(0); } 100% { transform: translateY(-100%); }}.box { animation: moveup 10s linear infinite; }.page { overflow: hidden; }/*样式*/.page { margin-top: 200px; height: 100px; border-top: 2px solid lightblue; border-bottom: 2px solid red; }.box {margin: 0;}.box li{ line-height: 30px; }浏览器支持(需加css前缀)：IE10+ Chrome FF android2.3+ safair5.1+
