[O] Add custom CSS class to code section?

[Williams, Ken]

Hi,

In http://orgmode.org/manual/CSS-support.html , I can see how to style Org-Mode's existing CSS classes in my exported HTML document.  What I can’t see is how to add a custom class to a code section, something like this:

#+BEGIN_SRC R :class foo

system.time( result <- doSomething() )

#+END_SRC

I want this because I’m trying to style some code blocks differently than others – specifically, I want some to be default-collapsed in my HTML output, and some to be default-expanded.  

*Ideally* this would actually be controlled by highjacking the existing ":exports" header argument, but I don’t know how to do that either.

Any tips?

 -Ken

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