Thanks - that's interesting! The intention was that the contents would sit at the top of the webpage when the width was too small... But it doesn't appear to now!
One option for now is to view the 'printable' version (link in the footer, or http://www.espruino.com/Reference?print)
Hi, the contents (as in table of contents) disappear when I look at http://www.espruino.com/Reference with my phone.
I often have a ferret about when out and about waiting for my daughter.
Any chance of a tweak to make it more responsive when using smaller form factor devices?