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Styling

The most basics styling

Global settings​

One can set a global style applied for all slides in your notebook. You need to use HTML or WLX cels for it and redefine .reveal class

cell 1
.wlx

<style>
  .reveal {
    font-family: Arial;
  }
</style>

now the default font will be Arial

cell 2
.slide

# Hey, I am Arial!

Local​

One can do the same with an individual slide by wrapping the text into HTML or WLX tags

.slide

<div style="font-family: Arial">

# Title, I am Arial

</div>

I am not Arial
warning

In order to mix Markdown with HTML or WLX correctly, remove white spaces from the beginning markdown, i.e.

.slide

<div>
	# It wont work
</div>

but instead

.slide

<div>

# It will work

</div>

Or one can define a class for it early

cell 1
.wlx

<style>
  .specialClass {
    font-family: Arial;
  }
</style>
cell 2
.slide

<div class="specialClass">

# Title, I am Arial

</div>

I am not Arial

Using data attributes​

It might come handy to use RevealJS styling option for individual elements instead of writing plain XML

.slide

<!-- .slide: data-background-color="black" -->


# Hey, I am white <!-- .element: style="color:white" -->

# Hey, I am red <!-- .element: style="color:red" -->

Here slide is applied to an entire slide, while element is localized to the last markdown element.

Misc​

Align things on a slide​

There are many ways on how to do that, here is one of the examples

Local style​

Define your own class inside slide or outside in HTML cell for example

.slide

<style>
  .center-x{
    margin-left:auto; 
    margin-right:auto;
    margin-top: 2rem;
    border: none; 
    border-radius: 4px
  }
</style>

## Programming Languages
### Wolfram Language

<iframe class="center-x" width="800" height="500" src="https://www.wolfram.com"/>

Inline styles​

The same as before, but explicitly as style attribute

...

<iframe style="margin-left: auto; margin-right:auto" width="800" height="500" src="https://www.wolfram.com"/>

Tailwind utility classes​

The same as before, but explicitly as class attribute

...

<iframe class="mr-auto ml-auto" width="800" height="500" src="https://www.wolfram.com"/>

Collapse / Expand section​

Use native HTML5 tag for it

.slide

# Title

<details>
<summary>Hidden section</summary>

## Subtitle

</details>

Scroll bar​

If the content is too large, but you still want to keep it on a single slide, one can tune the settings for a slide element

.slide

<!-- .slide: style="height:100%; overflow-y:scroll" -->

...large content goes

Align content​

.slide

<!-- .slide: style="text-align:left" -->

# Heading

Some text