Please add a way to set a class for parent div container

[dominikcz]

It would be nice to have the ability to add a class to parent div container. In Vuepress there was a class "mermaid" added by default, but there is no selector now to aid with styling.

[dominikcz]

Just additional note: if you don't want to add extra functionality like that, then maybe just add some default class like mermaid or something similar? It's really hard to reliably style diagrams without restricting selectors to parent container. I want to change things that are not available through theme configuration.

[emersonbottero]

<div class="my-class">
```mermaid
flowchart TD
  Start --> Stop

[dominikcz]

Yes, I'm aware of that option, but it's troublesome having to repeat that for every graph, not to mention mixing html with markdown... Please see #40 for my idea of accomplishing this task

[dominikcz]

hi, any plans on merging it to main?

[emersonbottero]

I'll add a static mermaid class to it. trying to remove the mindmap dependcy also.