Inline Styling

you may define css styles inside your markdown:

<style>
	.with-border{
		border: 1px solid red;
	}
</style>

styled text <!-- element class="with-border" -->

it is possible to add further css files beside theme and highlight theme to slide deck:

---
css: [css/layout.css,css/customFonts.css]
---

These files will be found relative to either the configured custom Theme Directory or the Slides Extended plugin folder.