h1,
h2 {
  font-family: Arial, Helvetica, sans-serif;
  font-weight: bold;
  text-align: center;
  margin: 0;
}
h2 {
  color: black;
  background-color: white;
  border-radius: 5px;
  width: 80px;
  cursor: pointer;
}
h2:active {
  transform: scale(0.9);
}
.main-game {
  margin: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  padding-top: 5%;
  height: 100vh;
}
.controls {
  color: white;
  position: absolute;
  background-color: black;
  width: 300px;
  height: 300px;
  border-radius: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 2;
}
.genius {
  display: grid;
  grid-template-areas:
    "green red"
    "yellow blue";
  grid-gap: 10px;
  border: 20px solid black;
  background-color: black;
  border-radius: 100%;
  width: 700px;
  height: 700px;
}
#blue {
  grid-area: blue;
  background-color: blue;
  border-bottom-right-radius: 100%;
}
#blue:active,
#green:active,
#red:active,
#yellow:active {
  opacity: 0.1;
}
#red {
  grid-area: red;
  background-color: red;
  border-top-right-radius: 100%;
}
#yellow {
  grid-area: yellow;
  background-color: yellow;
  border-bottom-left-radius: 100%;
}
#green {
  grid-area: green;
  background-color: green;
  border-top-left-radius: 100%;
}
.selected {
  opacity: 0.1;
  z-index: 1;
}

/* Small devices (landscape phones, 576px and up)*/
@media (max-width: 700px) {
    .controls {
        width: 100px;
        height: 100px;
    }
    .genius {
        width: 250px;
        height: 250px;
    }
    h1 {
        font-size: 12px;
    }
}