How to export
To a export your entire TBX (the method we will be using to export an entire website), run File > Export > as HTML. Doing this will also set the default location of future individual note exports.
To export an individual target note in Tinderbox, select it and run File > Export Selected Note. When you execute the export, only the selected note will be exported—not its children, and not anything else.
Tinderbox will guess the right location, which is important since CSS and images are read from the current note. If the export location of the current note is impossible because the sub-folder has not yet been created, the export will look screwy.
In any case, make sure you select the root of the Bootstrap framework folder you downloaded and unzipped as your export folder.
The only way to export more than one note at a time is to export your entire TBX.