* {
  box-sizing: border-box;
}

img {
  width: 100%;
  height: auto;
}
body {
  background-color: #246264;
  margin: 0;
}
main {
  max-width: 900px;
  margin: 0 auto;
  margin-top: 20vh;
  text-align: center;
}

h1 {
  color: white;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 5em;
}