How can I change the general fonts?

[Photonico]

How can I change the general fonts?

I do not have any experiments with CSS.

this does not work:

---
marp: true
math: katex
size: 16:9
style: 'style.css'
paginate: true
---

<style scoped>
section {
  font-family: "Times New Roman", serif;
}
</style>

<!-- _backgroundImage: URL('Pictures/01_background_luke.png')-->

# Analytical Mechanics

## Lagrange's Equation

___

[yhatt]

Your CSS definitions in <style scoped> are absolutely correct, but it looks like that the wrong usage of style directive makes interrupting to apply inline styles in the whole of Markdown document.

By removing this line, your style should work well:

 ---
 marp: true
 math: katex
 size: 16:9
-style: 'style.css'
 paginate: true
 ---

style directive must set the content of CSS styles, and cannot specify the file name. Please refer to https://marpit.marp.app/directives?id=tweak-theme-style.