html,
body {
  height: 100%;
  margin: 0;
}

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  cursor: pointer;
}


.container {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  width: 100%;
}
#game{
  width:100%;
}

#score {
  position: absolute;
  top: 30px;
  right: 30px;
  font-size: 2em;
  font-weight: 900;
}

#introduction {
  width: 200px;
  height: 150px;
  position: absolute;
  font-weight: 600;
  font-size: 0.8em;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  text-align: center;
  transition: opacity 2s;
}

#restart {
  width: 140px;
  height: 140px;
  position: absolute;
  border-radius: 30%;
  color: white;
  background-color: black;
  border: none;
  font-weight: 700;
  font-size: 1.2em;
  display: none;
  cursor: pointer;
}
#highScoreDiv{

  position: absolute;
  top: 45%;
  color: white;
 

}
#perfect {
  position: absolute;
  opacity: 0;
  transition: opacity 2s;
}