\begingroup

\normalfont
\color{black}

% O   + p    + I*2    + p
% 0.0 + 0.36 + 0.02*2 + 0.60 = 1.0
\begin{longtable}[c]{Op{0.36\textwidth}IIp{0.60\textwidth}N}

\caption{A long table.}
\label{tab:a-long-table}\\\hline\hline

\textbf{Column 1} & \textbf{Column 2} &\\\hline\hline

0 & \dummytext\dummytext\dummytext\dummytext\dummytext & \\\hline
1 & \dummytext\dummytext\dummytext\dummytext\dummytext & \\\hline
2 & \dummytext\dummytext\dummytext\dummytext\dummytext & \\\hline
3 & \dummytext\dummytext\dummytext\dummytext\dummytext & \\\hline
4 & \dummytext\dummytext\dummytext\dummytext\dummytext & \\\hline
5 & \dummytext\dummytext\dummytext\dummytext\dummytext & \\\hline
6 & \dummytext\dummytext\dummytext\dummytext\dummytext & \\\hline
7 & \dummytext\dummytext\dummytext\dummytext\dummytext & \\\hline
8 & \dummytext\dummytext\dummytext\dummytext\dummytext & \\\hline
9 & \dummytext\dummytext\dummytext\dummytext\dummytext & \\\hline

\end{longtable}

\endgroup
