Adapt CSS to handle Sphinx 1.3's s/tt/code/
Adapt CSS to handle Sphinx 1.3's s/tt/code/

Should now handle Sphinx 1.2 and 1.3 OK

nikolas/alabaster,nikolas/alabaster,bgeron/alabaster,ellisonbg/jupyter-alabaster-theme,charnpreetsingh/jupyter-alabaster-theme,ellisonbg/jupyter-alabaster-theme,jupytercalpoly/jupyter-alabaster-theme,bgeron/alabaster,jupytercalpoly/jupyter-alabaster-theme,charnpreetsingh/jupyter-alabaster-theme,charnpreetsingh/jupyter-alabaster-theme,ellisonbg/jupyter-alabaster-theme,jupytercalpoly/jupyter-alabaster-theme