PediTools website issues

I have been maintaining the PediTools website with some very old web design software which has finally become so obsolete as to cause formatting and display problems.

I updated the site today to use the most recent software and plugins, which seems to have fixed some issues, but is still causing some problems with formatting. For example, when displaying on a mobile device (e.g., iPhone), the page no longer reformats itself for the smaller screen.

Apologies, but I'm not sure I have the expertise to correct these issues. I'll keep trying, though.