How can I remove a hline in a specific column?
I wish the first line did not have the hline
\begin{table}[h!]
\resizebox{\columnwidth}{!}{%
\centering
\begin{tabular} {|c|c|c|c|c|c|c|c|c|c|c|c|c|}
\hline
\multirow{2}{5em}{Atividades} & \multicolumn{12}{|c|}{Meses 2019}\\
\hline
& Jan & Fev & Mar & Abr & Mai & Jun & Jul & Ago & Set & Out & Nov & Dez \\
\hline
1 & X & X & & & & & & & & & & \\
\hline
2 & & & X & X & & & & & & & & \\
\hline
3 & & & & X & & & & & & & & \\
\hline
4 & & & & X & X & & & & & & & \\
\hline
5 & & & & & & X & & & & & & \\
\hline
6 & & & & & & X & & & & & & \\
\hline
\end{tabular}
}
\caption{Cronograma}
\label{tab:Cronograma}
\end{table}
Thanks

\hline, just don't type it. Don't resize tables. – egreg Nov 30 '18 at 23:44\resizeboxto tables – David Carlisle Nov 30 '18 at 23:45