.col-md-4{
  display: inline-block;
  margin-left:-10px;
}
.col-md-4 img{
  width:230px;
  height:140px;
}
  
body .carousel-control-prev-icon,
body .carousel-indicators li,
body .carousel-control-next-icon{
  background-color:#000;
}

span.carousel-control-prev-icon {
	position: relative;
	bottom: 40px;
	right: 40px;
}

span.carousel-control-next-icon {
 position: relative;
 bottom: 40px;
}