body, body * {
  box-sizing: border-box;
}

body {
  padding: 15px;
}

a {
  text-decoration: underline;
}

button {
  margin: 10px 0;
}

#output {
  background-color: #DDD;
  width: 100%;
  min-width: 100%;
  max-width: 100%;
  height: 50vh;
  font-family: monospace;
}