:root {
  --button-box-gap: 2rem;
}

.button-box {
  display: flex;
  flex-wrap: wrap;
  gap: var(--button-box-gap);
}

.button-box--left {
  justify-content: flex-start;
}

.button-box--center {
  justify-content: center;
}

.button-box--right {
  justify-content: flex-end;
}