* {
  margin: 0px;
  padding: 0px;
  box-sizing: border-box;
}
body {
  display: flex;
  justify-content: center;
  height: 100vh;
  align-items: center;
  flex-direction: column;
  background-color: rgb(235, 235, 235);
}
h1 {
  color: white;
  text-shadow: 2px 2px 4px #000000;
}
h2 {
  color: white;
  text-shadow: 2px 2px 4px #000000;
}
.main {
  padding: 50px;
}
.main .content {
  display: flex;
}
.main .content .game-box {
  display: flex;
  justify-content: center;
  align-items: center;
}
.main .content .game-box input {
  background-color: rgba(216, 216, 216, 0.356);
  border-radius: 10px;
  box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
  margin: 10px;
  width: 60px;
  height: 60px;
  border: none;
  color: white;
  font-size: 30px;
  font-weight: 900;
  cursor: pointer;
}