deletions | additions       diff --git a/header.tex b/header.tex  index 2936202..ca1f587 100644  --- a/header.tex  +++ b/header.tex 
...
\usepackage{listings}  \usepackage{xcolor}  \usepackage{xspace}  \lstset{ %  backgroundcolor=\color{white}, % choose the background color  basicstyle=\footnotesize, % size of fonts used for the code 
...
frame=lrtb, %  xleftmargin=\fboxsep, %  xrightmargin=-\fboxsep, %  } \def\authorea{\href{http://en.wikipedia.org/wiki/Authorea}{Authorea}\xspace}  \def\latexml{\href{https://en.wikipedia.org/wiki/LaTeXML}{LaTeXML}\xspace}