body {
  background-image: url(../images/background.jpg);
  background-size: cover;
  background-attachment: fixed;
}

#game, #game-over, #solutions, #score {
  display: none;
}

#intro {
  margin-top: 50px;
}

.box {
  color: white;
  margin-bottom: 10px;
  padding: 5px 10px;
  background-color: black;
  font-weight: bold;
  width: 600px;
  margin: 0 auto;
}

#game img {
}

#solutions {
  display: none;
}

.solution {
  position: relative;
  width: 600px;
  margin: 10px auto;
}

.solution .square {
  position: absolute;
  border: 3px solid red;
  width: 40px;
  height: 40px;
}

.facebook {
  background-image: none;
  background-color: #3b5998 !important;
  border-color: #3b5998 !important;
}

.twitter {
  background-image: none;
  background-color: #4099FF !important;
  border-color: #4099FF !important;
}


footer {
  margin-top: 100px;
}