.button-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-column-gap: 30px;
  grid-row-gap: 30px;
}
.button-grid button {
  padding: 10px;
  text-align: center;
}
#timer-display {
  text-align: center;
  width: fit-content;
}
table {
  font-size: 1.5em;
}