.flex-container {
  display: flex;
  flex-wrap: wrap;
  background-color: CadetBlue;
}

.flex-container > div {
  background-color: CadetBlue;
  width: 75px;
  margin: 15px;
  text-align: center;
  line-height: 15px;
  font-size: 15px;
}