.clearfix:after{ content:'\20'; display:block; overflow:hidden; font-size:0px; line-height:0px; height:0px;border:0px;clear:both;} 

.img-flex ul{
	font-size: 0;
}
    .img-flex ul li {
        display: block;
        
        float: left;
        position:relative;
    }