.first-sect button:hover,
.second-sect .main-game-area-header button:hover,
.second-sect .main-game-area-content .main-message button:hover,
.third-sect .tutorial-game-area .game-area-header button:hover,
.tutorial-game-area .tutorial-message button:hover,
.tutorial-game-area .tutorial-message-score button:hover {
  box-shadow: 0 10px 5px black;
  text-shadow: 0 5px 5px black;
}