A way to add CSS classes to HTML tags

[agjs]

Hi there and thanks for all the effort you've put into this library. Draftjs would be practically useless without it.

I wonder if there's a simple way to add some sort of CSS class mapping, something like e.g.

{
'paragraph': 'some class',
'heading-one': 'some class'
}

If not, what would be the most effective way to "decorate" the HTML with classes using stateToHTML.

Thanks a bunch!