ensure pre, code has 'monospace' font family
ensure pre, code has 'monospace' font family

something recent resulted in input cells receiving the bootstrap css for code areas

thomasyu888/nbviewer,twosigma/beaker-sharing-server,Sage-Bionetworks/nbviewer,imsparsh/nbviewer,franblas/beaker-sharing-server,AlfiyaZi/nbviewer,Jay-Oh-eN/nbviewer,bollwyvl/nbviewer,thomasyu888/nbviewer,twosigma/beaker-sharing-server,iamjakob/nbviewer,bollwyvl/nbviewer,twosigma/beaker-sharing-server,franblas/beaker-sharing-server,twosigma/beaker-sharing-server,franblas/beaker-sharing-server,Sage-Bionetworks/nbviewer,christophelec/nbviewer,roxyboy/nbviewer,iamjakob/nbviewer,christophelec/nbviewer,AlfiyaZi/nbviewer,roxyboy/nbviewer,franblas/beaker-sharing-server,Jay-Oh-eN/nbviewer,imsparsh/nbviewer