* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: 'Press Start 2P', sans-serif;
  background-color: #222;
  color: #eee;
}

/*--------------Header--------------*/

header {
  position: relative;
  height: 35vh;
  border-bottom: 7px solid #eee;
}

.again {
  position: absolute;
  font-family: 'Press Start 2P', sans-serif;
  font-size: 125%;
  color: #222;
  margin-top: 20px;
  left: 1%;
  padding: 18px;
}
.between {
  position: absolute;
  left: 80%;
  top: 9%;
  font-size: 80%;
  white-space: nowrap;
}

h1 {
  position: absolute;
  font-size: 250%;
  text-align: center;
  top: 50%;
  left: 52%;
  transform: translate(-50%, -50%);
  white-space: nowrap;
}
.number {
  position: absolute;
  color: #222;
  background-color: #eee;
  font-size: 330%;
  padding: 40px 50px;
  top: 100%;
  left: 50%;
  transform: translate(-50%, -50%);
}

/*-------------------MAIN-----------------*/

main {
  display: flex;
  flex-direction: row;
  justify-content: space-around;
}

.left,
.right {
  display: flex;
  flex-flow: column;
}

/* LEFT */
.input-number {
  background-color: #222;
  border: 4px solid #eee;
  width: 240px;
  height: 100px;
  font-family: 'Press Start 2P', sans-serif;
  font-size: 280%;
  color: #eee;
  text-align: center;
  padding: 7px;
  margin-top: 130px;
}

.check {
  font-family: 'Press Start 2P', sans-serif;
  font-size: 125%;
  color: #222;
  padding: 18px;
  margin-top: 30px;
  width: 80%;
  align-self: center;
}

.message {
  margin-top: 150px;
  margin-bottom: 80px;
  font-size: 120%;
}

.score,
.highscore {
  font-size: 120%;
  margin: 10px;
}