body {
  background: #000;
  background-color: #000;
}

html:-webkit-full-screen-ancestor {
  background: #000;
  background-color: #000;
}

html:-moz-full-screen-ancestor {
  background: #000;
  background-color: #000;
}

.reveal pre {
  box-shadow : none;
}

.reveal .slides section > ul {
	margin-left: 1em;
}