How to place slide title in the center of the page in R Markdown?

Question

I would like to make a slide breaking between two sections by adding a blank slide with a short title in main title format (single #) in the center of it. Is that possible?

Answer 1

Create slides with no title and with classes .blank-slide .flexbox .vcenter and then create the slide title directly using h1 tag. And then use css on h1 tag under the .blank-slide class to make it look like title-slide title.

---
title: "Untitled"
output: ioslides_presentation
date: "2023-06-10"
css: style.css
---

```{r setup, include=FALSE}
knitr::opts_chunk$set(echo = FALSE)
```

## R Markdown

This is an R Markdown presentation. Markdown is a simple formatting syntax.


## {.blank-slide .flexbox .vcenter}


<h1>Intro to Syntax</h1>


## Slide with Bullets

- Bullet 1
- Bullet 2
- Bullet 3


## {.blank-slide .flexbox .vcenter}

<h1>More Discussion</h1>

style.css

.blank-slide h1 {
  font-size: 65px;
  line-height: 1.4;
  letter-spacing: -3px;
  color: #515151;
}