body {
  display: flex;
  justify-content: center;
}

.controls {
  display: flex;
  align-items: flex-end;
  margin-bottom: 1em;
}

.controls h1 {
  margin: 0 .3em 0 0;
  font-style: italic;
  font-family: 'Times New Roman', Times, serif;
}

.controls > div {
  margin-right: 1em;
}

button,
input[type="number"] {
  margin-bottom: 0;
}