.player {
  color: white;
  font-size: 1.6rem;
  display: inline-block;
  min-width: 370px;
  min-width: 37em;
  width: 50%;
  margin: 10px auto;
  margin: 1em auto;
}
.player ul {
  list-style: none;
  padding: 0;
}

.boards {
  margin: 0 auto 3rem;
  padding-top: 3rem;
}

.matrix {
  transition: all 400ms linear 100ms;
}
.matrix .layer {
  transition: all 400ms linear;
}
.matrix .layer .row .column {
  transition: all 250ms cubic-bezier(0.19, 1, 0.22, 1) 50ms;
}