.special_block {
    
    margin:20px 0px;
    overflow: hidden;
    position: relative;
   
}

.scroll-interval {
    float: left;
    list-style-type: none;
    margin: 0px;
    overflow: hidden;
    padding: 0px 10px 0px 0px;
    width: 256px; 
	height:297px;
 }

.scroll-interval img{ margin:0px 0px 0px 0px; position:relative; z-index:555; }

.prev {float: left; margin:auto; left:563px; z-index:9999; position:relative;}

.next { margin:auto; right:510px; z-index:9999; float:right; position:relative;}