.gamebox {
  height: 320px;
  width: 500px;
  background-color: lightgray;
}

.header {
  align-items: center;
  background-color: hsl(100, 20%, 50%);
  border-bottom: 1px solid red;
  display: flex;
  height: 60px;
  justify-content: space-between;
  width: 875px;
}

.header-feature {
  align-items: center;
  background-color: hsl(250, 20%, 50%);
  border-radius: 10px;
  color: white;
  display: flex;
  height: 40px;
  justify-content: center;
  margin: 8px 10px;
}

.flag-counter {
  width: 100px;
  margin-left: 10px;
}

.reset-button {
  box-shadow: 4px 4px 15px 0px hsl(100, 10%, 40%);
  width: 50px;
}

.timer {
  width: 50px;
}

.minefield {
  display: flex;
  flex-wrap: wrap;
}

.mine {
  align-items: center;
  background-color: #bdbdbd;
  border-color: white #818181 #818181 white;
  border-style: solid;
  border-width: 2px;
  box-sizing: border-box;
  display: flex;
  justify-content: center;
}

.mine--is-clicked {
  background-color: white;
  color: red;
}

.bomb--is-clicked {
  background-color: red;
  background-image: url('Bomb_alt-512.png');
  background-size: cover;
  background-position: center;
}