index.css

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

body {
  
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  background-color: #c6c6c6;
}
h1{
  color: #1b244a;
  font-size: 3rem;
  font-weight: bolder;
  margin: 10vh;
}
.container {
  position: relative;
  display: flex;
  justify-content: space-around;
  align-items: center;
  background-color: #1b244a;
  color: white;
  width: 575px;
  height: 385px;
  border-radius: 10px;
  border: 5px solid #f3f3f3;
}

h3 {
  font-size: 40px;
}

h2 {
  background-color: #080001;
  width: 155px;
  height: 120px;
  color: #f94f6d;
  text-align: center;
  font-size: 90px;
  margin: 20px;
  padding: 10px 0;
  border-radius: 5px;
}
button {
  width: 45px;
  height: 45px;
  background-color: #1b244a;
  border: 3px solid #9aabd8;
  border-radius: 5px;
  color: #9aabd8;
  font-size: 18px;
}
.add-two {
  margin: 0 5px;
}

#new-game {
  position: absolute;
  bottom: 10;
  width: 8vw;
  height: 4vh;
}