html, body {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
}
body {
  display: flex;
  height: 100vh;
  flex-direction: column;
  font-family: "Reddit Sans", sans-serif;
  font-optical-sizing: auto;
}
main {
  display: flex;
  flex: 1;
  margin: 3rem auto;
  width: clamp(30rem, 66vw, 90rem);
}
model-viewer {
  width: 100%;
  height: 60vh;
  border: 1px solid grey;
}
h1 {
  margin: initial 3rem;
  text-align: center;
}
footer {
  padding: 1rem 2rem;
}