.flex {
  display: flex;
}
#print {
  width: 2715px;
  display: flex;
  justify-content: flex-start;
  -ms-flex-wrap: wrap; /* IE10 */
  flex-wrap: wrap;
  padding: 0 4px;
}
.square {
  width: 10px;
  height: 10px;
  margin-right: 5px;
  margin-top: 5px;
  float: right;
}