Why I don't get the correct border in this table?
This is my code:
\begin{table}[htbp]
%\extrarowsep=_3pt^3pt
\begin{tabu}to\linewidth{|[2pt gray]l|c|c|c|[1.5pt gray]}
\tabucline[1.5pt gray]-
\bfseries something & \multicolumn{3}{c|}{something} \\
\tabucline[1.5pt gray]-
\textbf{something} & \textbf{something} & \textbf{something} & \textbf{something} \\
\hline
\tabucline[1.5pt gray]-
something & something & something & something \\
\hline
\tabucline[1.5pt gray]-
something & something & something & something \\
\hline
\tabucline[1.5pt gray]-
something & something & something & something \\
\hline
\tabucline[1.5pt gray]-
something & something & something & something \\
\hline
\tabucline[1.5pt gray]-
\end{tabu}%
\caption{something}
\label{tab:something}%
\end{table}%
\documentclass{...}
, the required\usepackage
's,\begin{document}
, and\end{document}
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