[class*="col-"] {
  border: 3px solid black;
  box-sizing: border-box;
  float: left;
  background-color: white;
  position: relative;
}

.col-1-6 {
  width: 15.33%;
  padding-bottom: 15%;
}

.col-1-6 p {
  font-family: Courier;
  left: 20%;
  margin: 0;
  position: absolute;
  top: 50%;
  transform: translate(0, -50%)
}

.col-edge-lower {
  border-left: none;
  border-right: none;
  width: 4%;
}

.col-edge-upper {
  border-left: none;
  border-right: none;
  border-top: none;
  width: 4%;
}

.col-1-1 {
  border-style: none;
  font-size: xx-small;
  width: 100%;
}