ioslides background with css, title slide

Question

When I have a slide mid-presentation that has a big title on it the background color is grey, but I want it to be white. What CSS code can I add to do this? I already figured out how to make all my text black, but how do I make that slide a white background?

For example:

---
title: "Untitled"
output: ioslides_presentation
---



## R Markdown

This is an R Markdown presentation.


# Make this slide white background (black text)

## Slide with Bullets

- Bullet 1
- Bullet 2
- Bullet 3

Answer 1

Slides, those have level1 header, but not the title-slide has the class dark specified. So overwriting the background property for the class dark changes that grey background.

---
title: "Untitled"
output: ioslides_presentation
css: style.css
---

## R Markdown

This is an R Markdown presentation.


# Make this slide white background (black text)

## Slide with Bullets

- Bullet 1
- Bullet 2
- Bullet 3

style.css

slides > slide.dark {
  background: white !important;
}

slide.dark h2 {
  color: black !important;
}

---

---