[stbn]

This looks very cool, thank you! I have an issue, though: Can't open the File and Mind Map menus, neither on Firefox nor Chromium nor Opera.

[cagrimmett]

Same. Tried in Safari and Chrome. Upon inspection, looks like something is going wrong with the styles. Changing .dropdown-content{position:absolute;} to position:fixed; brought them back for me.

[TobLoef]

Whoops, that should be fixed now, as soon as GitHub Pages updates.

[rambojazz]

I can't open them as well.