hgroup {
  width: 920px;
}
slides > slide {
  -webkit-transition: none;
  -moz-transition: none;
  -o-transition: none;
  transition: none;
}

a {
  border-bottom: none;
}
pre, .inline-code {
  white-space: pre-wrap;
}
.inline-code {
  font-family: "Source Code Pro","Courier New",monospace;
  font-size: 20px;
  line-height: 28px;
  padding: 2px 5px;
  letter-spacing: -1px;
  background-color: #E6E6E6;
}
slides article p {
    line-height: 1.3em;
}
img.align-center {
    display: block;
    margin: 1em auto;
}
em {
    font-weight: bold;
    font-style: italic;
}