.demonstrations.col-sm-3 { float: left; clear: both; width: 100%; margin-bottom: 18px; }
.demonstrations.col-sm-3 a {
float: left;
width: 100px;
height: 100px;
margin: 0 10px 10px 0;
cursor: pointer;
}
.demonstrations.col-sm-3 a img {margin-left:20px; }
.demonstrations.col-sm-3 .rightmost { margin-right: 0;}