ow:after {
  display: table;
  clear: both;
  content: '';
}

.col-md-1 {
	width: calc((100% - 20px * 12) * 4 / 12);
  margin-right: 10px;
  margin-left: 10px;
  float: left;
}

.col-md-2 {
	width: calc((100% - 20px * 12) * 2 / 12);
  margin-right: 10px;
  margin-left: 10px;
  float: left;
}

.col-md-4 {
  width: calc((100% - 20px * 12) * 4 / 12);
  margin-right: 10px;
  margin-left: 10px;
  float: left;
}

.col-md-10 {
  width: calc((100% - 20px * 12) * 10 / 12);
  margin-right: 10px;
  margin-left: 10px;
