# description begins on a new line without indent

I am using this method to write description in a new line in beamer,

But how can I remove the indent at the new line so it aligns with the \item[]?

This is what I have right now.

\pdfminorversion=4
\documentclass{beamer}
\usepackage{appendixnumberbeamer}
\usepackage{textpos}
\usepackage{animate}
\usepackage{siunitx}
\usepackage{caption}
\usepackage{subcaption}

\begin{document}

\begin{frame}{title}
\fontsize{8pt}{9}\selectfont
\begin{columns}
\centering
\column{.7\textwidth}
\vbox to .8\textheight{%
\begin{figure}
\centering
\begin{subfigure}[b]{.5\textwidth}
\centering
\includegraphics[width=\textwidth]{../Fig1}
\end{subfigure}%\hfill
\begin{subfigure}[b]{.5\textwidth}
\centering
\includegraphics[width=\textwidth]{../Fig2}
\end{subfigure}\\\vfill
\begin{subfigure}[b]{.5\textwidth}
\centering
\includegraphics[width=\textwidth]{../Fig3}
\end{subfigure}%\hfill
\begin{subfigure}[b]{.5\textwidth}
\centering
\includegraphics[width=\textwidth]{../Fig4}
\end{subfigure}%
\end{figure}
}%

\column{.3\textwidth}
Imperfection in Tx and Rx may cause IQ imbalance and other system error.\\
\begin{description}[leftmargin=0pt]
\item[Gain Imbalance] \hfill \\Amplitude is different for I and Q.
\item[Quadrature Error] \hfill \\Phase between I and Q is not \ang{90}.
\item[IQ Offset] \hfill \\I and Q are not centered at zero.
\item[Gain Compression] \hfill \\Distance $d$ between constellation points is power dependent.
\end{description}

\end{columns}
\end{frame}

\end{document}


One easy way is to set description width to be equal to -\labelsep; in the following example I made the change local to a frame, but if you move the line

\setbeamersize{description width=-\labelsep}


the change will be global:

\documentclass{beamer}

\begin{document}

{
\setbeamersize{description width=-\labelsep}
\begin{frame}
\begin{description}
\item[First]\mbox{}\\ The first item.
\item[Second]\mbox{}\\ The second item.
\item[Third]\mbox{}\\ The third item.
\end{description}
\end{frame}
}

\end{document}


An with the updated code in the question, there's \begin{description}[leftmargin=0pt], so the string "leftmargin=0pt" is taken as the widest label, overriding the previously defined description width; all that needs to be done is to delete [leftmargin=0pt]. Notice also that I replaced figure with center and subfigure with minipage (there's really no need for neither the figure nor for the subfigure environments in beamer):

\documentclass{beamer}
\usepackage{siunitx}

\begin{document}

{
\setbeamersize{description width=-\labelsep}
\begin{frame}{title}
\fontsize{8pt}{9}\selectfont
\begin{columns}
\column{.7\textwidth}
\vbox to .8\textheight{%
\begin{center}
\begin{minipage}[b]{.5\textwidth}
\centering
\includegraphics[width=\textwidth]{example-image-a}
\end{minipage}%\hfill
\begin{minipage}[b]{.5\textwidth}
\centering
\includegraphics[width=\textwidth]{example-image-b}
\end{minipage}\\\vfill
\begin{minipage}[b]{.5\textwidth}
\centering
\includegraphics[width=\textwidth]{example-image-c}
\end{minipage}%\hfill
\begin{minipage}[b]{.5\textwidth}
\centering
\includegraphics[width=\textwidth]{example-image-a}
\end{minipage}%
\end{center}
}%

\column{.3\textwidth}

Imperfection in Tx and Rx may cause IQ imbalance and other system error.\\
\begin{description}
\item[Gain Imbalance] \hfill \\Amplitude is different for I and Q.
\item[Quadrature Error] \hfill \\Phase between I and Q is not \ang{90}.
\item[IQ Offset] \hfill \\I and Q are not centered at zero.
\item[Gain Compression] \hfill \\Distance $d$ between constellation points is power dependent.
\end{description}

\end{columns}
\end{frame}
}

\end{document}


• Thanks! For some reason it didn't work for me, I've uploaded a screenshot of my slide. – LWZ Sep 8 '13 at 22:35
• @LWZ A screenshot in this situation is useless; please provide the code producing that result. – Gonzalo Medina Sep 8 '13 at 22:36
• Sorry, I've uploaded the code now, adding \setbeamersize{description width=-\labelsep} before the frame did not make any difference. – LWZ Sep 8 '13 at 22:45
• @LWZ of course it didn't since you are using \begin{description}[leftmargin=0pt] delete [leftmargin=0pt]. – Gonzalo Medina Sep 8 '13 at 22:47
• @LWZ no problem! I added some other modifications to your code in my updated answer; perhaps they can also be useful for you. – Gonzalo Medina Sep 8 '13 at 22:54

if you use the enumitem package you are able to adjust every parameter of the lists.

to achieve what you want, you need the itemindent and the leftmargin parameter

\documentclass{article}
\usepackage{enumitem}

\begin{document}

\begin{description}[nosep,itemsep=0pt,leftmargin=0pt]
\item[Counterfactual Test]\hfill\\
Kann ein Kaugummi erhalten werden, wenn sich kein Kaugummi im Automaten befindet?
\end{description}
\end{document}


• This works, but it changed the color of \item[]. I'm using it in beamer so I would like to keep the color. – LWZ Sep 8 '13 at 19:21
• @LWZ: I've added the beamer to your question, since it seem relevant. Also relevant: Does enumitem conflict with beamer for lists? – Werner Sep 8 '13 at 19:31
• Thank you! Seems like it's better to have another way other than using enumitem. – LWZ Sep 8 '13 at 19:37
• @LWZ: Well i did not know you're using beamer, if anyone wants to add a solution working with beamer I'll delete mine – Rico Sep 8 '13 at 19:42