Change font sizes with style sheets for RStudio presentation

Question

I am using RStudio Presentation and I'd like to change the font size for the main elements (e.g.: header, bullet, and sub bullet). I was able to add a style sheet to my rmd file but I do not know what to change in the css file. I have tried changing the font size in various places in the css file but nothing worked.

## Slide with Bullets

- Bullet 1
    + Sub bullet
- Bullet 2
- Bullet 3

Answer 1

The default style sheet for rstudio presentations is here

You can of course have a style sheet, but you can also change the settings on the fly like below.

Untitled
========================================================

Slide title
========================================================

<style>

/* slide titles */
.reveal h3 { 
  font-size: 100px;
  color: blue;
}

/* heading for slides with two hashes ## */
.reveal .slides section .slideContent h2 {
   font-size: 40px;
   font-weight: bold;
   color: green;
}

/* ordered and unordered list styles */
.reveal ul, 
.reveal ol {
    font-size: 50px;
    color: red;
    list-style-type: square;
}

</style>

## Slide with Bullets

- Bullet 1
    + Sub bullet
- Bullet 2
- Bullet 3

Gives me this

The #, ##, ###, etc correspond to h1, h2, h3, etc. Apparently the h3 goes with the slide titles. It is also important to put the .reveal in front of each item if you are changing the rstudio stylesheet.