body {
  background-color: black;
}

.flappy-bird {
  position: relative;
  margin: 0 auto;
  background-color: #4EC0CA;
  overflow: hidden;
}

.flappy-bird .top-pipe {
  transform: rotate(180deg);
}

.flappy-bird .game-over {
  position: absolute;
  background: url("../images/game-over.png") no-repeat;
  width: 226px;
  height: 160px;
  left: 187px;
  top: 60px;
}

.flappy-bird .retry {
  position: absolute;
  padding: 5px 15px;
  text-transform: uppercase;
  background-color: #e96200;
  border: 5px solid #553000;
  color: white;
  font-weight: bold;
  left: 258px;
  top: 234px;
  cursor: pointer;
}

.flappy-bird .score-box {
  color: white;
  position: absolute;
  font-size: 35px;
  font-weight: 900;
  top: 10px;
  left: 291px;
  z-index: 10;
}

.flappy-bird .score {
  color: white;
  position: absolute;
  font-size: 20px;
  font-weight: 900;
  top: 76px;
  left: 23px;
  z-index: 10;
}

.flappy-bird .hi-score {
  color: white;
  position: absolute;
  font-size: 20px;
  font-weight: 900;
  top: 118px;
  left: 23px;
  z-index: 10;
}

.flappy-bird .logo {
  position: absolute;
  background: url("../images/logo.png") no-repeat;
  width: 390px;
  height: 104px;
  left: 105px;
  top: 50px;
}

.flappy-bird .get-ready {
  position: absolute;
  background: url("../images/get-ready.png") no-repeat;
  width: 174px;
  height: 86px;
  left: 213px;
  top: 214px;
}

.flappy-bird .instruction {
  position: absolute;
  left: 218px;
  top: 334px;
  color: #e96200;
  font-weight: bold;
  font-family: Arial, Helvetica, sans-serif;
  z-index: 10;
}

.flappy-bird .start {
  position: absolute;
  padding: 5px 15px;
  text-transform: uppercase;
  background-color: #e96200;
  border: 5px solid #553000;
  color: white;
  font-weight: bold;
  left: 258px;
  top: 362px;
  cursor: pointer;
  z-index: 10;
}