html,
body {
  font-family:
    system-ui, 'Segoe UI', Arial, sans-serif, 'Apple Color Emoji',
    'Segoe UI Emoji', 'Segoe UI Symbol';
  margin: 0;
  padding: 0;
}

.main {
  display: flex;
  flex-flow: column;
  height: 100vh;
  width: 100vw;
}

.header {
  display: grid;
  flex-grow: 0;
  grid-template-columns: max-content auto max-content;
  margin: 0.25em 0.5em 0.75em;
}

.header-source {
  place-self: center center;
  margin: 0 2em;
}

.demo-links {
  display: grid;
  flex: 1 0;
  gap: 0 2px;
  grid-template-columns: auto 1fr;
  grid-template-rows: 1fr;
  width: 100%;
}

.demo-link {
  margin: 0;
  padding: 0 1em;
}

.anchor-image {
  display: inline-block;
}

.image-border {
  border: 1px solid lightgray;
}

.footer {
  flex-grow: 0;
  font-size: smaller;
  margin: 1rem 0.5em 0.75rem;
}

.text-spacer {
  margin: 0 0.5em;
}