I am the author, this was my weekend project. The first released version had an embarrassing bug that prevented it working properly on some browsers when zoomed

I am the author, this was my weekend project. The first released version had an embarrassing bug that prevented it working properly on some browsers when zoomed. This is especially annoying since I put some effort into accessibility. It is fixed now on the site (refresh to clear your cache). The repository will have the fix soon (edit: just pushed!)