How to modify reveal.js slide settings in a ipython/jupyter notebook

Question

I'm writing reveal.js slides using the jupyter/iPython notebook. I would like to change some of the default settings is an easy way. Things I already managed (in case it helps someone)

1. Change the theme

Change the theme by adding a raw cell containing

<link rel="stylesheet" href="reveal.js/css/theme/sky.css" id="theme">

2. Changing the reveal.js configuration

The problem with nbconvert is that it loads reveal.js after all the cell syntax, so just adding the <script>Reveal.configure(...)</script> in the same way doesn't work (Reveal will still be unknown). The solution is to make sure the code is executed after the document has loaded:

<script type="text/javascript">

$(document).ready(function(){

    Reveal.configure({
        transition: 'convex' // none/fade/slide/convex/concave/zoom
    })
});    
</script>

3. Changing other things

This is where I fail:

How can I set the behavior of fragments, or the background of a specific slide?

Answer 1

Maybe this is a little bit late:

Although some of them do not work, but I found another post from the same blog mention above: Customizing your IPython slides, might be what you are asking for .

the custom.css still works for me (with Jupyter 4 and Revealjs 3.0.0). just put the custom.css file in the same directory where your .html is in.

to change font (remember the '.reveal'):

.reveal p {
font-family: 'Raleway', sans-serif;
color: #2d28cc;
}

to add a background (but the background colors from the theme will disappear, maybe need more css tweak):

body {
  background: url(logo.png)
  no-repeat
  left center;
padding: 5px 0 5px 25px;
}

to add things to specific slides, I would use a custom div, e.g.:

div.footer {
font-size:14pt;
font-style: italic;
color: #4aaeee;
text-align: center
}

then add this to the jupyter cell:

<div id="footer">...</div>

Answer 2

You can change the general theme or the transitions according to this blog post: http://www.damian.oquanta.info/posts/change-the-ipython-slides-defaults-with-an-ipython-config-file.html

The basic idea is to create a config file slides_config.py somewhere (i.e. in the same folder as your slides):

c = get_config()
c.Exporter.template_file = 'default_transition'

Then, you create another template file default_transition.tpl:

{%- extends 'slides_reveal.tpl' -%}


{% block body %}

{{ super() }}

<script>

Reveal.initialize({

    // Display controls in the bottom right corner
    //controls: true,

    // Display a presentation progress bar
    //progress: true,

    // Push each slide change to the browser history
    //history: false,

    // Enable keyboard shortcuts for navigation
    //keyboard: true,

    // Enable touch events for navigation
    //touch: true,

    // Enable the slide overview mode
    //overview: true,

    // Vertical centering of slides
    //center: true,

    // Loop the presentation
    //loop: false,

    // Change the presentation direction to be RTL
    //rtl: false,

    // Number of milliseconds between automatically proceeding to the
    // next slide, disabled when set to 0, this value can be overwritten
    // by using a data-autoslide attribute on your slides
    //autoSlide: 0,

    // Enable slide navigation via mouse wheel
    //mouseWheel: false,

    // Transition style
    transition: 'concave', // default/cube/page/concave/zoom/linear/fade/none

    // Transition speed
    //transitionSpeed: 'default', // default/fast/slow

    // Transition style for full page backgrounds
    //backgroundTransition: 'default', // default/linear/none

    // Theme
    theme: 'sky' // available themes are in /css/theme

});

</script>

{% endblock body %}

Additionally, when you want to change some CSS details, you can create a custom CSS file custom.css and add your desired content in there.

The custom CSS file gets loaded automatically.