I had missed the fact that FF spun off a separate branch to develop his CSS, and hasn't been keeping it up to date with the master branch; DH now wants those changes merged into the master branch, but of course they're incompatible because I've reworked a lot of stuff for the language-splitting. I made a start, merging the CSS changes to html.css, only to discover that the evil JQuery had been invoked simply in order to hide and show some divs by clicking on an SVG map. Rewrote the JavaScript, which turned out to be no longer without JQuery than it was with, so that's sorted. However, the new site design is also dependent on a Bootstrap CSS file which is pretty horrendous -- minified and invalid, so really difficult to work with. I don't know where we go from here, but we don't want a massive Bootstrap file most of which we don't need...