.buttons {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-content: center;
  align-items: center;
  flex-wrap: wrap;
}

.button {
  background-color: rgba(70, 200, 80, 0.8);
  border-radius: 0.2em;
  color: white;
  padding: 0.15em;
  margin: 0.1em;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
}

.button.history {
  background-color: rgba(70, 200, 200, 0.8);
  font-size: 0.7em;
}