body { font-size:18pt; }
h1 { font-size:48pt; }
h2 { font-size:36pt; }
h3 { font-size:28pt; }

pre {
  border:1px solid #000;
  padding:10px;
  white-space:pre-wrap;
}

.deck-container > .slide {
  page-break-after: always;
}