For some reason, the text for the documentation (https://ziglang.org/documentation/master/) has a very low line-height, so it is quite difficult to read. If you add this css to the page it will look much better:
#contents {
line-height: 1.5em;
}
It will go from this:

to this one:

if 1.5 is too much maybe 1.3 or something.
I think the font size should be kicked down to 14px too (from 16px)
Most helpful comment
if 1.5 is too much maybe 1.3 or something.