/* * The exam room. * * Four rooms use this: the free Diagnostic Test, a question-bank drill, a * practice exam and a full-length. They differ in what they enforce — a clock * that runs out, a section that closes, an explanation shown at once — but a * student moving between them should not feel they have moved between four * different sites, so the chrome is defined once, here, rather than four times. * * Loaded AFTER site.css and BEFORE any page's own