{ content: 'SQL'; }
  pre.src-sqlite:before { content: 'SQLite'; }
  /* additional languages in org.el's org-babel-load-languages alist */
  pre.src-forth:before { content: 'Forth'; }
  pre.src-io:before { content: 'IO'; }
  pre.src-J:before { content: 'J'; }
  pre.src-makefile:before { content: 'Makefile'; }
  pre.src-maxima:before { content: 'Maxima'; }
  pre.src-perl:before { content: 'Perl'; }
  pre.src-picolisp:before { content: 'Pico Lisp'; }
  pre.src-scala:before { content: 'Scala'; }
  pre.src-shel