\documentclass[10pt,a4paper]{article}

% Packages
\usepackage{fancyhdr}           % For header and footer
\usepackage{multicol}           % Allows multicols in tables
\usepackage{tabularx}           % Intelligent column widths
\usepackage{tabulary}           % Used in header and footer
\usepackage{hhline}             % Border under tables
\usepackage{graphicx}           % For images
\usepackage{xcolor}             % For hex colours
%\usepackage[utf8x]{inputenc}    % For unicode character support
\usepackage[T1]{fontenc}        % Without this we get weird character replacements
\usepackage{colortbl}           % For coloured tables
\usepackage{setspace}           % For line height
\usepackage{lastpage}           % Needed for total page number
\usepackage{seqsplit}           % Splits long words.
%\usepackage{opensans}          % Can't make this work so far. Shame. Would be lovely.
\usepackage[normalem]{ulem}     % For underlining links
% Most of the following are not required for the majority
% of cheat sheets but are needed for some symbol support.
\usepackage{amsmath}            % Symbols
\usepackage{MnSymbol}           % Symbols
\usepackage{wasysym}            % Symbols
%\usepackage[english,german,french,spanish,italian]{babel}              % Languages

% Document Info
\author{fangjian}
\pdfinfo{
  /Title (reflux.pdf)
  /Creator (Cheatography)
  /Author (fangjian)
  /Subject (reflux Cheat Sheet)
}

% Lengths and widths
\addtolength{\textwidth}{6cm}
\addtolength{\textheight}{-1cm}
\addtolength{\hoffset}{-3cm}
\addtolength{\voffset}{-2cm}
\setlength{\tabcolsep}{0.2cm} % Space between columns
\setlength{\headsep}{-12pt} % Reduce space between header and content
\setlength{\headheight}{85pt} % If less, LaTeX automatically increases it
\renewcommand{\footrulewidth}{0pt} % Remove footer line
\renewcommand{\headrulewidth}{0pt} % Remove header line
\renewcommand{\seqinsert}{\ifmmode\allowbreak\else\-\fi} % Hyphens in seqsplit
% This two commands together give roughly
% the right line height in the tables
\renewcommand{\arraystretch}{1.3}
\onehalfspacing

% Commands
\newcommand{\SetRowColor}[1]{\noalign{\gdef\RowColorName{#1}}\rowcolor{\RowColorName}} % Shortcut for row colour
\newcommand{\mymulticolumn}[3]{\multicolumn{#1}{>{\columncolor{\RowColorName}}#2}{#3}} % For coloured multi-cols
\newcolumntype{x}[1]{>{\raggedright}p{#1}} % New column types for ragged-right paragraph columns
\newcommand{\tn}{\tabularnewline} % Required as custom column type in use

% Font and Colours
\definecolor{HeadBackground}{HTML}{333333}
\definecolor{FootBackground}{HTML}{666666}
\definecolor{TextColor}{HTML}{333333}
\definecolor{DarkBackground}{HTML}{A3A3A3}
\definecolor{LightBackground}{HTML}{F3F3F3}
\renewcommand{\familydefault}{\sfdefault}
\color{TextColor}

% Header and Footer
\pagestyle{fancy}
\fancyhead{} % Set header to blank
\fancyfoot{} % Set footer to blank
\fancyhead[L]{
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{C}
    \SetRowColor{DarkBackground}
    \vspace{-7pt}
    {\parbox{\dimexpr\textwidth-2\fboxsep\relax}{\noindent
        \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}}
    }
\end{tabulary}
\columnbreak
\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{reflux Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{fangjian} via \textcolor{DarkBackground}{\uline{cheatography.com/21970/cs/4381/}}}
\end{tabulary}
\end{multicols}}

\fancyfoot[L]{ \footnotesize
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{LL}
  \SetRowColor{FootBackground}
  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}fangjian \\
  \uline{cheatography.com/fangjian} \\
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Published 12th June, 2015.\\
   Updated 12th May, 2016.\\
   Page {\thepage} of \pageref{LastPage}.
\end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Sponsor}}  \\
  \SetRowColor{white}
  \vspace{-5pt}
  %\includegraphics[width=48px,height=48px]{dave.jpeg}
  Measure your website readability!\\
  www.readability-score.com
\end{tabulary}
\end{multicols}}




\begin{document}
\raggedright
\raggedcolumns

% Set font size to small. Switch to any value
% from this page to resize cheat sheet text:
% www.emerson.emory.edu/services/latex/latex_169.html
\footnotesize % Small font.

\begin{multicols*}{2}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Action}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{var statusUpdate = Reflux.createAction(); \newline var statusUpdate = Reflux.createAction();} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Store}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{// Creating a DataStore - Listening to statusUpdate action \newline var statusStore = Reflux.createStore(\{ \newline     init: function() \{ \newline         \seqsplit{this.listenTo(statusUpdate}, this.output); \newline     \}, \newline     output: function(flag) \{ \newline         var status = flag ? 'ONLINE' : 'OFFLINE'; \newline         this.trigger(status); \newline     \} \newline \});} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Store}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{// Creating a Data Store - Listening to textUpdate action \newline var textStore = Reflux.createStore(\{ \newline     init: function() \{ \newline         this.listenTo(textUpdate, this.output); \newline     \}, \newline     output: function() \{ \newline         var i, args = \seqsplit{Array.prototype.slice.call(arguments}, 0); \newline         for (i = 0; i \textless{} args.length; i++) \{ \newline             this.writeOut(args{[}i{]}); \newline         \} \newline     \}, \newline     writeOut: function(text) \{ \newline         this.trigger(text); \newline     \} \newline \});} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Store - aggregate}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{// Creating an aggregate DataStore that is listening to textStore and statusStore \newline var storyStore = Reflux.createStore(\{ \newline     init: function() \{ \newline         \seqsplit{this.listenTo(statusStore}, this.statusChanged); \newline         this.listenTo(textStore, this.textUpdated); \newline         this.storyArr = {[}{]}; \newline     \}, \newline     statusChanged: function(flag) \{ \newline         if (flag === 'OFFLINE') \{ \newline             this.trigger('Once upon a time the user did the following: ' + this.storyArr.join(', ')); \newline             // empty storyArr \newline             this.storyArr.splice(0, this.storyArr.length); \newline         \} \newline     \}, \newline     textUpdated: function(text) \{ \newline         \seqsplit{this.storyArr.push(text);} \newline     \} \newline \});} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Component}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{// Fairly simple view component that outputs to console \newline function ConsoleComponent() \{ \newline     \seqsplit{textStore.listen(function(text)} \{ \newline         console.log('text: ', text); \newline     \}); \newline     \seqsplit{statusStore.listen(function(status)} \{ \newline         console.log('status: ', status); \newline     \}); \newline     \seqsplit{storyStore.listen(function(story)} \{ \newline         console.log('story: ', story); \newline     \}); \newline \} \newline  \newline new ConsoleComponent();} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Invoke}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{// Invoking the action with arbitrary parameters \newline statusUpdate(true); \newline textUpdate("testing", 1337, \{ "test": 1337 \}); \newline statusUpdate(false);} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{/{\emph{* Will output the following: \newline  }} \newline  {\emph{ status:  ONLINE \newline  }} text:  testing \newline  {\emph{ text:  1337 \newline  }} text:  \{ test: 1337 \} \newline  {\emph{ story:  Once upon a time the user did the following: testing, 1337, {[}object Object{]} \newline  }} status:  OFFLINE \newline  */}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Source}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{\{\{link="https://github.com/spoike/refluxjs/blob/master/test/index.js"\}\}https://github.com/spoike/refluxjs/blob/master/test/index.js\{\{/link\}\}% Row Count 3 (+ 3)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}


% That's all folks
\end{multicols*}

\end{document}