# How to remove unwanted blank margin at the end of the row?

Inspired by this, here is an MWE that show a visible margin between the end of the row and the right hand side of the table. That's annoying. Any idea how to remove that?

\documentclass[12pt]{article}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Fancy table
% https://tex.stackexchange.com/questions/112343/beautiful-table-samples
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\usepackage[usenames,dvipsnames]{xcolor}
\usepackage{tcolorbox}
\usepackage{tabularx}
\usepackage{array}
\usepackage{colortbl}
\tcbuselibrary{skins}
\usepackage{multirow}

\newcolumntype{Y}{>{\raggedleft\arraybackslash}X}
\newcolumntype{Z}{>{\centering\arraybackslash\hsize=.6\hsize}X}

\tcbset{tab2/.style={enhanced,fonttitle=\bfseries,fontupper=\normalsize\sffamily,
colback=yellow!10!white,colframe=red!50!black,colbacktitle=Salmon!40!white,
coltitle=black,center title}}

\begin{document}

\begin{tcolorbox}[tab2,tabularx={Z || Z | Z | Z},title=AAA,width=0.7\textwidth]
BBB & BBB & BBB & BBB \\ \hline\hline
\multirow{3}{*}{XXX} & AAA & AAA & AAA \\ \cline{2-4}
&  & AAA & AAA \\ \cline{2-4}
&  & AAA & AAA
\end{tcolorbox}

\end{document}


• Change the definition of Z column \newcolumntype{Z}{>{\centering\arraybackslash}X} – Salim Bou Nov 30 '16 at 12:52

## 1 Answer

The problem comes a misunderstanding of >{\hsize=0.6\hsize}X: it is made for X columns of unequal lengths and the values work as barycentric coordinates: their sum must be equal to the number of columns (4, here). Their sum is equal to 2.4 instead! As all your columns have equal widths, remove this specification and it will be fine:

\documentclass[12pt]{article}
\usepackage[table, dvipsnames]{xcolor}
\usepackage{tcolorbox}
\usepackage{tabularx}
\usepackage{array}
\tcbuselibrary{skins}
\usepackage{multirow}

\newcolumntype{Y}{>{\raggedleft\arraybackslash}X}
\newcolumntype{Z}{>{\centering\arraybackslash}X}%
\tcbset{tab2/.style={enhanced,fonttitle=\bfseries,fontupper=\normalsize\sffamily,
colback=yellow!10!white,colframe=red!50!black,colbacktitle=Salmon!40!white,
coltitle=black,center title}}

\begin{document}

\begin{tcolorbox}[tab2,tabularx={Z || Z | Z | Z },title=AAA, width=0.7\textwidth]
BBB & BBB & BBB & BBB \\ \hline\hline
\multirow{3}{*}{XXX} & AAA & AAA & AAA \\ \cline{2-4}
& & AAA & AAA \\ \cline{2-4}
& & AAA & AAA
\end{tcolorbox}

\end{document}


Additionally, note the usenames option for xcolor is deprecated as it's tthe default now. I added the table option, which avoids you having to load explicitly colortbl.