body {
  font-family: "VT323", monospace;
  margin: 0;
}

input {
  font-family: inherit;
  padding: 6px 8px;
  border-radius: 10px;
  font-size: 16px;
  text-align: center;
  width: 120px;
  color: #533c44;
}

input:focus {
  outline: none;
}

button {
  display: inline-block;
  padding: 10px 28px;
  border: 2px solid white;
  border-radius: 10px;
  text-decoration: none;
  font-size: 16px;
  font-family: inherit;
  color: white;
  background-color: #533c44;
  cursor: pointer;
}

button:hover {
  background-color: #423036;
}

button:active {
  background-color: #423036;
}

.borderLeft {
  width: 60px;
  height: 100vh;
  position: absolute;
  background-color: white;
  z-index: +1;
  top: 0;
}

.rightSection {
  width: calc(100% - 60px - 500px);
  height: 100vh;
  position: absolute;
  background-color: white;
  z-index: +1;
  left: 560px;
  top: 0px;
}

.borderTop {
  width: 500px;
  height: 60px;
  position: absolute;
  background-color: white;
  z-index: +1;
}

.game-container {
  width: 500px;
  height: 730px;
  position: absolute;
  left: 60px;
}

.sky {
  background-image: url("fb-game-background.png");
  width: 500px;
  height: 580px;
  position: absolute;
  top: 60px;
  z-index: -1;
}

.bird {
  background-image: url("flappy-bird.png");
  width: 60px;
  height: 45px;
  position: absolute;
  left: 220px;
  bottom: 300px;
}

.other-bird {
  background-image: url("flappy-bird.png");
  width: 60px;
  height: 45px;
  position: absolute;
  z-index: -1;
  opacity: 0.2;
}

.obstacle {
  background-image: url("flappybird-pipe.png");
  width: 60px;
  height: 300px;
  position: absolute;
}

.topObstacle {
  background-image: url("flappybird-pipe.png");
  transform: rotate(180deg);
  width: 60px;
  height: 300px;
  position: absolute;
}

@keyframes slideright {
  from {
    background-position: 10000%;
  }
  to {
    background-position: 0%;
  }
}

@-webkit-keyframes slideright {
  from {
    background-position: 10000%;
  }
  to {
    background-position: 0%;
  }
}

.ground-container {
  width: 500px;
  height: 150px;
}

.ground {
  position: absolute;
  top: 630px;
  height: 150px;
  background-image: url("bottom-background.png");
  width: 500px;
  z-index: +1;
  margin-left: 60px;
}

.ground-moving {
  position: absolute;
  top: 630px;
  height: 150px;
  background-image: url("bottom-background.png");
  background-repeat: repeat-x;
  animation: slideright 100s infinite linear;
  -webkit-animation: slideright 100s infinite linear;
  min-width: 100%;
}

.title {
  margin: 60px 20px 20px;
  color: #533c44;
  font-size: 4vw;
  text-shadow: 2px 2px #dadada;
  text-align: center;
  width: 600px;
}

.instruction {
  margin: 0px 20px 0px;
  text-align: center;
  width: 600px;
  font-size: 25px;
}

.my-info {
  display: flex;
  justify-content: center;
  width: 600px;
}

.nickname {
  display: flex;
  margin: 20px 20px 40px 60px;
  text-align: center;
}

.my-score {
  font-size: 22px;
  margin-top: 1%;
  color: #533c44;
}

.scoreboard {
  position: relative;
  max-width: 450px;
  margin: 20px 20px 20px 80px;
  padding: 20px;
  background-color: #ded895;
  background-image: url(top-right-brown.png), url(top-left-brown.png),
    url(bottom-right-brown.png), url(bottom-left-brown.png);
  background-position: top right, top left, bottom right, bottom left;
  background-repeat: no-repeat;
}

.scoreboard:before {
  content: "";
  position: absolute;
  top: 0px;
  left: 10px;
  display: block;
  width: calc(100% - 20px);
  height: calc(100% - 4px);
  border-top: 2px solid #b1878f;
  border-bottom: 2px solid #b1878f;
  z-index: 1;
}

.scoreboard:after {
  content: "";
  position: absolute;
  top: 10px;
  left: 0px;
  display: block;
  width: calc(100% - 4px);
  height: calc(100% - 20px);
  border-left: 2px solid #b1878f;
  border-right: 2px solid #b1878f;
  z-index: 1;
}

.score-title {
  margin: 0 0 0;
  font-family: "VT323", monospace;
  font-size: 3em;
  text-align: center;
  color: #ee5140;
  text-shadow: 2px 2px #f0eaa1;
}

.top-score {
  text-align: center;
  margin: 0px 20px;
  font-size: 20px;
  color: #533c44;
}

.score-list {
  position: relative;
  height: 250px;
  max-height: 250px;
  margin: 0;
  padding: 0;
  overflow-y: auto;
  z-index: 2;
}

.score-item {
  display: flex;
  justify-content: space-between;
  margin: 2px 20px;
  list-style: none;
  font-size: 2em;
  font-weight: bolder;
  color: white;
  text-shadow: 1px 1px 1px black;
}