Scroll overflow for long equations

[friggog]

Resolves #1470

[mortenpi]

This works great for KaTeX but not for MathJax. I think it should be enough to apply a class on the <div> that surrounds the equation

Documenter.jl/src/Writers/HTMLWriter.jl

Line 1637 in ef9a562

mdconvert(m::Markdown.LaTeX, ::MDBlockContext; kwargs...) = Tag(:div)(string("\\[", m.formula, "\\]"))

and then apply the overflow-x style to that <div>?

[friggog]

@mortenpi good point, I think this should now work for all packages. The margin fix is a bit hacky but it seems like the easiest way to get clean layouts

[mortenpi]

LGTM, thanks for iterating on this @friggog!

I'll just note here that it looks like MathJax doesn't actually break inline equations like KaTeX does. But I don't think there's much we can do about it here.