html, body {
  margin: 0;
  font-family: sans-serif;
  font-size: 0.9rem;
  display:flex;
  flex-direction: column;
}
#app {
	display: flex;
	flex-direction:column;
	flex-grow: 1;
	height: 100vh;
}
#app .nav {
	padding: 1rem;
}
#app .nav svg {
	width: auto;
	height: 2.5rem;
}
#app iframe {
	flex-grow:1;
	width: 100%;
}