SOURCE

$("#box").marquee({direction :"left",startVisible:true,duplicated:true});

<div id="box">
  <div id="content">
  <img src="http://img4.imgtn.bdimg.com/it/u=1527445597,1971190395&amp;fm=11&amp;gp=0.jpg" />
<img src="http://img4.imgtn.bdimg.com/it/u=1123636154,93602582&amp;fm=26&amp;gp=0.jpg" />
<img src="http://img4.imgtn.bdimg.com/it/u=3179302799,2960621457&amp;fm=26&amp;gp=0.jpg" />
<img src="http://img2.imgtn.bdimg.com/it/u=3198620271,1362172065&amp;fm=26&amp;gp=0.jpg" />
<img src="http://img3.imgtn.bdimg.com/it/u=3176357666,461599489&amp;fm=26&amp;gp=0.jpg" />
<img src="http://img3.imgtn.bdimg.com/it/u=1960056937,3924438348&amp;fm=26&amp;gp=0.jpg" />
<img src="http://img5.imgtn.bdimg.com/it/u=1518361932,3040605927&amp;fm=26&amp;gp=0.jpg" />
<img src="http://img3.imgtn.bdimg.com/it/u=3154005550,1996337799&amp;fm=26&amp;gp=0.jpg" />
<img src="http://img2.imgtn.bdimg.com/it/u=3905733582,4206961416&amp;fm=26&amp;gp=0.jpg" />
<img src="http://img0.imgtn.bdimg.com/it/u=3793314094,219861548&amp;fm=26&amp;gp=0.jpg" />
<img src="http://img1.imgtn.bdimg.com/it/u=2282726681,2796309624&amp;fm=26&amp;gp=0.jpg" />
<img src="http://img1.imgtn.bdimg.com/it/u=3317867717,2112610860&amp;fm=26&amp;gp=0.jpg" />
<img src="http://img1.imgtn.bdimg.com/it/u=2878463657,1697458722&amp;fm=26&amp;gp=0.jpg" />
<img src="http://img5.imgtn.bdimg.com/it/u=2875562581,1694037104&amp;fm=26&amp;gp=0.jpg" />
<img src="http://img3.imgtn.bdimg.com/it/u=3829792327,3077761116&amp;fm=26&amp;gp=0.jpg" />
<img src="http://img2.imgtn.bdimg.com/it/u=1076538103,969020821&amp;fm=26&amp;gp=0.jpg" />
<img src="http://img0.imgtn.bdimg.com/it/u=2823223278,97930848&amp;fm=26&amp;gp=0.jpg" />

</div></div>

#box{
}
#box > #content{  
  height:500px;
  display: flex;
}