body {
  margin: 0;
}

#container {
  height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: 'Roboto Mono', monospace;
}

.sub-container {
  margin: auto;
  display: flex;
  flex-direction: column;
}

#header-container {
  flex: 1;
  text-transform: uppercase;
  line-height: 0.67;
  font-size: 14vh;
}

#instructions-container {
  flex: 2;
  align-items: center;
}

#instructions-controls {
  display: flex;
}

#instructions-controls div {
  margin: 0 5px;
}

.arrow {
  font-family: monospace;
}

#instructions-notes {
  max-width: 500px;
  text-align: center;
  font-weight: bold;
}

#footer-container {
  flex: 1;
  justify-content: flex-end;
}

#footer-container a {
  color: #1155cc;
}