html,
body {
  margin: 0;
  padding: 0;
  height: 100%;

  font-family: monospace;
  font-size: 1.1rem;

  color: #4a4a4a;
  background-color: #f3f3f3;

  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.main {
  width: 60vw;
  max-width: 60vw;
}

@media only screen and (max-width: 1000px) {
  .main {
    width: 90vw;
    max-width: 90vw;
  }
}

section {
  margin-bottom: 1.5rem;
}

.mb-2 {
  margin-bottom: 0.5rem;
}