Documentation UN-usability and UI on smartphone
Is an absolute pain to use on an iPhone because of its silly UI. It’s the only page I know that doesn’t / can’t use inertia and thus is a PITA to scroll.
And then there is this red bar note on the top I can’t get rid of that costs further real estate beyond the sidebar and some weird zooming behavior as a result!

The subject field here is practically invisible on an iPad under many lighting conditions!