style.css

html, .view body {
    background-color: #202020;
    counter-reset: slideidx;
}
body, .view section {
    background-color: #202020;
    border-radius: 12px
}
/* A section is a slide. It's size is 800x600, and this will never change */
section, .view head > title {
    /* The font from Google */
    font-family: 'Fira Sans', arial, sans-serif;
    font-size: 30px;
    background: white;
    box-shadow: 10px 0px 10px -5px rgba(0,0,0,0.2);
}

section.title, section.titleslide {
    background: #9a9f9c;
    color: black;
}

.view section:after {
    counter-increment: slideidx;
    content: counter(slideidx, decimal-leading-zero);
    position: absolute; bottom: -80px; right: 100px;
    color: white;
}

.view head > title {
    color: white;
    text-align: center;
    margin: 1em 0 1em 0;
}

h1, h2 {
    margin-top: 10px;
    text-align: center;
    font-size: 50px;
    letter-spacing: -0.025em;
    color: #9a9f9c;
}
.title h1 {
    margin: 100px 40px 0;
    font-size: 55px;
    color: #fff;
}
.titleslide h1 {
    margin-top: 200px;
    font-size: 80px;
    color: #fff;
}
h3 {
    margin: 100px 0 50px 100px;
}

ul {
    margin: 50px 100px 20px 50px;
}
li > ul {
    margin: 15px 50px;
}

p {
    margin: 20px;
    font-size: 30px;
}

strong {
    color: #9a9f9c;
    letter-spacing: -0.025em;
}

a {
    color: #3070a0;
    font-weight: bold;
    text-decoration: none;
}
a:before {
    content: "↗ ";
}

blockquote {
    height: 100%;
    background-color: black;
    color: white;
    font-size: 60px;
    padding: 50px;
}
blockquote:before {
    content: open-quote;
}
blockquote:after {
    content: close-quote;
}

code, pre {
    font-family: Source Code Pro, Ubuntu Mono, monospace;
}

/* Figures are displayed full-page, with the caption
     on top of the image/video */
figure {
    background-color: transparent;
    width: 100%;
    height: 100%;
}
figure > * {
    position: absolute;
}
figure > img, figure > video {
    width: 100%; height: auto;
}
figcaption {
    margin: 70px;
    font-size: 50px;
}

footer {
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 40px;
    text-align: right;
    background-color: rgba(255,255,255,0.3);
    border-top: 1px solid #707070;
    color: #000;
    display: none;
}

/* Iconos/fondos */

section.title, section.titleslide {
    background: no-repeat 325px 325px #9a9f9c;
    background-size: 150px auto;
}
section.title {
    background-image: url(assets/logo512.png);
    background-position: 300px 280px;
    background-size: 200px auto;
}
section.title:after {
    content: "@libreim_";
    position: absolute;
    top: 460px;
    left: 0;
    right: 0;
    text-align: center;
    font-size: 0.7em;
    color: rgba(255,255,255,0.8);
}

section#linux {
    background-image: url(assets/tux.svg);
}
section#linux:after {
    content: "© Larry Ewing";
    position: absolute;
    top: 500px;
    left: 0;
    right: 0;
    text-align: center;
    font-size: 0.4em;
    color: rgba(255,255,255,0.6);
}

section#latex {
    background-image: url(assets/latex.png);
}

section#git-github {
    background-image: url(assets/git.png);
    background-position: 250px 325px;
    background-size: 300px auto;
}

section#backslide {
    background-image: none;
}

/* Transition effect */
/* Feel free to change the transition effect for original
     animations. See here:
     https://developer.mozilla.org/en/CSS/CSS_transitions
     How to use CSS3 Transitions: /
section {
    -moz-transition: left 400ms linear 0s;
    -webkit-transition: left 400ms linear 0s;
    -ms-transition: left 400ms linear 0s;
    transition: left 400ms linear 0s;
}
.view section {
    -moz-transition: none;
    -webkit-transition: none;
    -ms-transition: none;
    transition: none;
}

.view section[aria-selected] {
    border: 5px red solid;
}

/* Before /
section { left: -150%; }
/* Now /
section[aria-selected] { left: 0; }
/* After /
section[aria-selected] ~ section { left: +150%; }
/**/


/**** Transitions: ****/
section {
    -moz-transition: left 600ms ease 20ms, opacity 800ms ease-in-out 0s;
    -webkit-transition: left 600ms ease 20ms, opacity 800ms ease-in-out 0s;
    -ms-transition: left 600ms ease 20ms, opacity 800ms ease-in-out 0s;
    transition: left 600ms ease 20ms, opacity 800ms ease-in-out 0s;
}
/*section[aria-selected] {
    -moz-transition: left 600ms ease-in-out 0s, opacity 400ms ease-in-out 0s;
    -webkit-transition: left 600ms ease-in-out 0s, opacity 400ms ease-in-out 0s;
    -ms-transition: left 600ms ease-in-out 0s, opacity 400ms ease-in-out 0s;
    transition: left 600ms ease-in-out 0s, opacity 400ms ease-in-out 0s;
}
/*section h1 {
    -moz-transition: padding 600ms ease-in-out 0.2s, color 400ms ease-in-out 0.2s;
    -webkit-transition: padding 600ms ease-in-out 0.2s, color 400ms ease-in-out 0.2s;
    -ms-transition: padding 600ms ease-in-out 0.2s, color 400ms ease-in-out 0.2s;
    transition: padding 600ms ease-in-out 0.2s, color 400ms ease-in-out 0.2s;
  }*/

/* Before ****/
section {
    left: 0;
    opacity: 0;
    z-index: 0;
}
/*section h1 {
    padding: 0 10pt;
    color: transparent;
  }*/
/* Now ****/
section[aria-selected] {
    left: 0;
    opacity: 1;
    z-index: 1;
}
/*section[aria-selected] h1 {
    padding: 10pt 10pt 20pt;
    color: #fff !important;
  }*/
/* After ****/
section[aria-selected] ~ section {
    left: 200px;
    opacity: 0;
    z-index: 2;
}
/*section[aria-selected] ~ section h1 {
    color: transparent;
    padding: 30pt 10pt 60pt;
  }*/

/* Incremental elements */

/* By default, visible */
.incremental > * { opacity: 1; }

/* The current item */
.incremental > *[aria-selected] { opacity: 1; }

/* The items to-be-selected */
.incremental > *[aria-selected] ~ * { opacity: 0; }

/* The progressbar, at the bottom of the slides, show the global
     progress of the presentation. */
#progress-bar {
    height: 2px;
    background: #AAA;
}