[pw6hv]

On Firefox, the left table of content pane overlaps with the text thus I cannot see the leftmost part of the paragraphs...

[jsinai]

Same issue with Safari.

Ignoring that small issue, this is a well-crafted and mature resource, one I wish I had access to 5 years ago! Good job to the authors.

[dguest]

If you make the window narrower the content pane disappears, so it's possible to work around this.

[pw6hv]

I think it's fixed now, it was not working correctly before but now the site looks great!

[complex_pi]

Can you report on your screen resolution?