noscroll

http://www.allaboutcircuits.com/technical-articles/fritzing-takes-your-design-from-breadboard-to-pcb/

If you make the window bigger, you see more of the text. But the
scrollbars don't change in response. Once the window fills the whole
screen, there's no way to view the remaining text. The cursor keys or
pagedown have no effect; nor does the scrollwheel.

Never seen this phenomenon before. What's going on in the coding?

If it's something in the site's CSS, is there any way of tweaking it
in Netsurf?

First noticed this using Netsurf #2789 on Armini 5.22; same behaviour
now in Netsurf #2935 on Iyonix 5.18.

--
Jim Nagel www.archivemag.co.uk