# Alignment in custom description environment

I have to list the hardware of a computer, and I'd like to use the description environment from the enumitem package.

I have several problems of alignment as you can see on the picture.

I want the labels to be on the left margin (as they actually are), and the content to be aligned with the longest element. The last thing I want is to have the \\ command setting the text on the same alignment (600 GB aligned with the 160 GB)

Here is a MWE :

\documentclass{article}
\usepackage[english]{babel}
\usepackage{lipsum} % for dummy text only
\usepackage{enumitem}
\usepackage{calc}
\usepackage[locale = FR, binary-units, abbreviations,per-mode=symbol]{siunitx}

\begin{document}
\lipsum[1]

\begin{description}[labelwidth=\widthof{Connectivity},
leftmargin=\widthof{Connectivity},align=left]%2.9cm
\item[Processor] Intel Xeon i7 64 bits 16 cœurs @\SI{2.9}{\giga\hertz}
\item[Memory] \SI{64}{\giga\byte} RAM DDR3 @\SI{1600}{\mega\hertz}
\item[Storage] \SI{160}{\giga\byte} : partition \texttt{boot}\\ \SI{600}{\giga\byte} : partition \texttt{home}
\item[Connectivity] 3xUSB 3.0
\item[Internet] 2xGigabit Ethernet
\end{description}

\lipsum[1]

\end{document}

I tried setting the \labelwidth of the longest word (Connectivity), but it fails because

• Content is not aligned: 3xUSB is not in the same vertical as the rest(Intel)
• The second line of Storage doesn't start at the same point as the first line

Any ideas on how to solve this problem ?

• For the width problem, you can try \widthof{\textbf{Connectivity}} since the word connectivity is in bold and has a bigger width than non-bold connectivity – AJN Apr 26 '16 at 8:32

Since the left hand column of the description is in bold letters, you have to calculate the the width based on bold letters. Trying \widthof{\textbf{Connectivity}} solves that problem.

As for the insufficient indenting when multiple lines are present, they seem to be about one n space and so I gave a dummy character n or y to the argument of the second widthof command and it seems to work. This may not be the right way to solve the second problem though.

\documentclass{article}
\usepackage[english]{babel}
\usepackage{lipsum} % for dummy text only
\usepackage{enumitem}
\usepackage{calc}
\usepackage[locale = FR, binary-units, abbreviations,per-mode=symbol]{siunitx}

\begin{document}
\lipsum[1]

\begin{description}[labelwidth=\widthof{\textbf{Connectivity}},
leftmargin=\widthof{\textbf{Connectivityy}},align=left]%2.9cm
\item[Processor] Intel Xeon i7 64 bits 16 cœurs @\SI{2.9}{\giga\hertz} \lipsum[1]
\item[Memory] \SI{64}{\giga\byte} RAM DDR3 @\SI{1600}{\mega\hertz}
\item[Storage] \SI{160}{\giga\byte} : partition \texttt{boot}\\ \SI{600}{\giga\byte} : partition \texttt{home}
\item[Connectivity] 3xUSB 3.0
\item[Internet] 2xGigabit Ethernet
\end{description}

\end{document}

• Yeah, it seems to work perfectly. I have another \description with other labels, and it does the trick :) – EisenHeim Apr 26 '16 at 8:50
• I'm not quite understanding what you mean by "gave a dummy character" as I can't see it in your example. I don't have any labels that are longer than the standard indent but the first line starts before the rest of the paragraph. – Kajsa Feb 11 at 11:29
• There is an additional 'y' in \widthof{\textbf{Connectivityy}} – AJN Feb 11 at 13:38