I want to center vertically elements in my two columns table just in my left column, which I want it to be 30% of the line width and the second one to be left aligned and 70% of the line width. I have succeeded doing these two things separately but not together in the same table.
My code is the following:
\setlength{\arrayrulewidth}{1mm}
\setlength{\tabcolsep}{18pt}
\usepackage{array}
\usepackage{tabularx}
{\rowcolors{1}{blue!50!white!60}{blue!30!white!70}
\begin{tabularx}{\linewidth}{ |>{\arraybackslash}m{0.3\linewidth}|>{\arraybackslash}m{0.7\linewidth}|}
\hline
ID & GUIDEME-FR-FUNC-001 \\
TITLE & Functions Start Over \\
AUTHOR & IBM CIO\\
CREATION DATE & 25-09-2018 \\
SOURCE & GUIDEME-FR-FUNC-001 \\
SUBSYSTEM & Functions \\
TYPE & Functional \\
PRIORITY & High \\
STATUS & Approved \\
DESCRIPTION & The system shall permit users to start over and look for another room \\
TEST PLAN & Check if it is possible to go back to the main page once instructions have been displayed \\
\hline
\end{tabularx}
}
And the outcome is the following:



\renewcommand{\tabularxcolumn}[1]{m{#1}}in combination with the originalXtype column approach as shown in this very closely related question: [Vertical alignment in tabularx X column type]https://tex.stackexchange.com/q/113020/134144() – leandriis Apr 09 '19 at 17:08