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

h1 {
  text-align: center;
  font-size: 48pt;
}
h2 {
  text-align: center;
  font-size: 24pt;
}

.top {
  background-color: #1E90FF
}

.center {
  display: block;
  margin-left: auto;
  margin-right: auto;
  width: 50%;
}