preso/themes/reveal-hugo/exampleSite/layouts/partials/home/reveal-hugo/head.html

<!-- This partial is included before the end of the head tag for only the 'example' presentation -->
<!-- A common use would be to add CSS to the page to customize the theme -->
<style>
/* Add padding, margin and a hover effect on code samples */
.reveal section pre {
  box-shadow: none;
  margin-top: 25px;
  margin-bottom: 25px;
  border: 1px solid lightgrey;
}
.reveal section pre:hover {
  border: 1px solid grey;
  transition: border 0.3s ease;
}
.reveal section pre > code {
  padding: 10px;
}
.reveal table {
  font-size: 0.65em;
}
/* For slide-specific CSS example */
.reveal section.side-by-side h1 {
  position: absolute;
}
.reveal section.side-by-side h1:first-of-type {
  left: 25%;
}
.reveal section.side-by-side h1:nth-of-type(2) {
  right: 25%;
}
.reveal section[data-background-image] a,
.reveal section[data-background-image] p,
.reveal section[data-background-image] h2 {
  color: white;
}
.reveal section[data-background-image] a {
  text-decoration: underline;
}
</style>