button {
  background-color: white;
  border: 2px solid #2f4b7c;
  border-radius: 10px;
  margin: 5px;
}

.game-board {
  width: 600px;
  height: 600px;
  margin: 0 auto;
  background-color: floralwhite;
  color: #ff7c43;
  border: 2px solid #ffa600;
  border-radius: 5px;
  font-family: Roboto, sans-serif;
  display: grid;
  grid-template-rows: 1fr 1fr 1fr;
  grid-template-columns: 1fr;
}

.grid-row {
  background-color: floralwhite;
  border: 2px solid floralwhite;
  border-radius: 6px;
  font-family: Roboto, sans-serif;
  font-weight: bold;
  font-size: 4em;
  display: grid;
  grid-template-rows: 1fr;
  grid-template-columns: 1fr 1fr 1fr;
}

.block {
  background-color: floralwhite;
  border: 2px solid floralwhite;
  border-radius: 2px;
  font-family: Roboto, sans-serif;
  font-weight: bold;
  font-size: 20em;
}

h1 {
  margin: 30px;
}

.color2 {
  color: crimson;
}

.color1 {
  color: dodgerblue;
}