html, body {
  background-color: #fff;
  background: radial-gradient(circle at center, #fff 0%, #f8f8f8 75%, #ebebeb 100%);
  color: #222;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "Liberation Sans", sans-serif;
  font-size: 1rem;
  line-height: 1.5;
  margin: 0;
  border: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  align-items: center;
}

main {
  padding: 1rem;
  text-align: center;
}

h1 {
  font-size: 2.5rem;
  line-height: 1.1;
  margin: 0;
}

@media screen and (max-width: 480px) {
  h1 {
    font-size: 1.5rem;
  }
}

img {
  max-width: 100%;
  height: auto;
}

p {
  margin: 1rem 0 0 0;
}

div {
  padding-bottom: 80px;
}