\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{liuy}
\pdfinfo{
  /Title (css3.pdf)
  /Creator (Cheatography)
  /Author (liuy)
  /Subject (CSS3 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}{2C7FA3}
\definecolor{LightBackground}{HTML}{F1F7F9}
\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{CSS3 Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{liuy} via \textcolor{DarkBackground}{\uline{cheatography.com/88612/cs/20295/}}}
\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}liuy \\
  \uline{cheatography.com/liuy} \\
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Not Yet Published.\\
   Updated 24th August, 2019.\\
   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}{p{0.76 cm} x{2.128 cm} x{4.712 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{8.4cm}}{\bf\textcolor{white}{Element Selectors}}  \tn
% Row 0
\SetRowColor{LightBackground}
* & \seqsplit{通配符选择器} & 匹配所有标签 \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
E & \seqsplit{元素选择器} & \seqsplit{匹配元素是E的标签} \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
\#id & id 选择器 & 按照id 匹配 \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
\seqsplit{.class} & \seqsplit{类选择器} & 按照class匹配 \tn 
% Row Count 8 (+ 2)
% Row 4
\SetRowColor{LightBackground}
E, F &  & \seqsplit{选择既是E的元素，又是F的元素} \tn 
% Row Count 10 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}---}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{p{0.76 cm} x{3.344 cm} x{3.496 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{8.4cm}}{\bf\textcolor{white}{Relationship Selectors}}  \tn
% Row 0
\SetRowColor{LightBackground}
E F & 后代选择器 & E 下面所有F \seqsplit{的标签，无论是否直系} \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
E \textgreater{} F & 子选择器/ \seqsplit{直接后代选择器} & E \seqsplit{下面直系F标签} \tn 
% Row Count 6 (+ 3)
% Row 2
\SetRowColor{LightBackground}
E + F & \seqsplit{相邻兄弟选择器} & 跟E \seqsplit{相邻的同层级的F标签} \tn 
% Row Count 8 (+ 2)
% Row 3
\SetRowColor{white}
E \textasciitilde{} F & \seqsplit{通用兄弟选择器} & \seqsplit{无需跟E相邻的同层级F标签} \tn 
% Row Count 10 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}---}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{1.84 cm} x{6.16 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Attribute Selectors}}  \tn
% Row 0
\SetRowColor{LightBackground}
{[}att{]} & 带有att 属性的元素 \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
{[}att="val"{]} & 带有 att \seqsplit{属性，并且属性值为val} 的元素 \tn 
% Row Count 3 (+ 2)
% Row 2
\SetRowColor{LightBackground}
{[}att\textasciicircum{}="val"{]} & \seqsplit{带有att属性，并以val} 开头的元素 \tn 
% Row Count 5 (+ 2)
% Row 3
\SetRowColor{white}
{[}att\$="val"{]} & \seqsplit{带有att属性，并以val} 结尾的元素 \tn 
% Row Count 7 (+ 2)
% Row 4
\SetRowColor{LightBackground}
{[}att*="val"{]} & \seqsplit{带有att属性，且属性值包含"val"} 的元素 \tn 
% Row Count 9 (+ 2)
% Row 5
\SetRowColor{white}
{[}att\textasciitilde{}="val"{]} & \seqsplit{带有att属性，该属性的多个分隔值中至少匹配一个"val"} \tn 
% Row Count 12 (+ 3)
% Row 6
\SetRowColor{LightBackground}
{[}att|="val"{]} & \seqsplit{带有att属性，并且属性值为"val"或以"val-"为前缀} \tn 
% Row Count 15 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{2.72 cm} x{5.28 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Backgrounds}}  \tn
% Row 0
\SetRowColor{LightBackground}
background & background-image | background-position | background-size | background-repeat | background-attachment | background-origin | background-clip | background-color \tn 
% Row Count 7 (+ 7)
% Row 1
\SetRowColor{white}
\seqsplit{background-origin} & border-box | padding-box | content-box \tn 
% Row Count 9 (+ 2)
% Row 2
\SetRowColor{LightBackground}
\seqsplit{background-position} & top left | top center | top right | center left | center center | center right | bottom left | bottom center | bottom right | x-\% y-\% | x-pos y-pos \tn 
% Row Count 15 (+ 6)
% Row 3
\SetRowColor{white}
\seqsplit{background-attachment} & scroll | fixed \tn 
% Row Count 17 (+ 2)
% Row 4
\SetRowColor{LightBackground}
\seqsplit{background-break} & bounding-box | each-box | continuous \tn 
% Row Count 19 (+ 2)
% Row 5
\SetRowColor{white}
\seqsplit{background-clip} & length | \% | border-box | padding-box | content-box| no-clip \tn 
% Row Count 22 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}


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

\end{document}