How to add CSS to markdown elements all across Joplin?

Not sure how markdown works, but with HTML you can assign CSS classes to elements without assigning a class to each individually for instance:


Is there a way to have a custom CSS sheet for Joplin?

I would like for all my images to have a 1px solid red border on ALL images inserted into Joplin notes, without needing to add individual inline styles or adding a class manually.

Thanks, excellent that works perfectly for others out there, all you need to do is click on:

Tools >> Options >> Appearance >> Advanced Settings (button) >> Custom stylesheet for rendered Markdown

You click on that link and notepad opens up, you can put your CSS in there as normal HTML like this:

h1 {color:red;)

And it will change all the headings :wink:


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