AsciiDoctor automatic image scaling does not perform correctly

[johanjan]

AsciiDoctor is supposed to have automatic image scaling:

https://asciidoctor.org/docs/user-manual/

However, this does not perform correctly in this example, where the images are sized beyond the browser view limits in my Chrome browser at a particular zoom level:

http://book.mso4sc.cemosis.fr/madfs/0.1/fenics/README/

[prudhomm]

@johanhoffman it is a CSS issue.
We have done that in Feel++ docs, we will push the css code and how to get nice and properly scaled images in the doc
@vincentchabannes @gdolle could you put the code for that in mso4sc ?