How to make a space between the item at description?

Question

Here is a MWE:

% Preview source code

%% LyX 2.3.2-2 created this file.  For more info, see http://www.lyx.org/.
%% Do not edit unless you really know what you are doing.
\documentclass[a4paper,english,hebrew,numbers=noenddot]{scrartcl}
\usepackage{amsmath}
\usepackage{amsthm}
\usepackage{fontspec}
\setlength{\parindent}{0bp}
\usepackage{color}
\usepackage[unicode=true,pdfusetitle,
 bookmarks=true,bookmarksnumbered=false,bookmarksopen=false,
 breaklinks=false,pdfborder={0 0 0},pdfborderstyle={},backref=false,colorlinks=true]
 {hyperref}
\hypersetup{
 linkcolor=blue}

\makeatletter

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% LyX specific LaTeX commands.
\pdfpageheight\paperheight
\pdfpagewidth\paperwidth


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% User specified LaTeX commands.
\newfontfamily\hebrewfont[Script=Hebrew]{David CLM}
\newfontfamily\hebrewfonttt[Script=Hebrew]{Miriam Mono CLM}
\newfontfamily\hebrewfontsf[Script=Hebrew]{Bellefair}
\newfontfamily{\am}{Open Sans Hebrew}
\AtBeginDocument{
\renewcommand\footnoterule{%
  \kern -3pt
  \hbox to \textwidth{\hfill\vrule height 0.4pt width .4\textwidth}
  \kern 2.6pt
}}
\renewcommand{\labelenumii}{\labelenumi\arabic{enumii}.}
\addtokomafont{disposition}{\rmfamily}
\renewcommand{\descriptionlabel}[1]{\hspace{\labelsep}\bfseries\am\textcolor{blue}{#1:}}

\makeatother

\usepackage{polyglossia}
\setdefaultlanguage{hebrew}
\setotherlanguage{english}
\begin{document}
\begin{description}
\item [{כחגלדך}] דג סקרן שט לו ביום דג סקרן שט לו ביום דג סקרן שט לו ביום
דג סקרן שט לו ביום דג סקרן שט לו ביום דג סקרן שט לו ביום דג סקרן שט
לו ביום דג סקרן שט לו ביום דג סקרן שט לו ביום דג סקרן שט לו ביום דג
סקרן שט לו ביום דג סקרן שט לו ביום דג סקרן שט לו ביום דג סקרן שט לו
ביום דג סקרן שט לו ביום דג סקרן שט לו
\end{description}

\end{document}

This is the result:

As you can see there text is below the blue word. Can I separate them?
i.e.:
All of the text will be after the black line. Can I do something like this?

In other words - it is possible to make a space for the labels (blue words) and space for the text that they wont mix?

EDIT:
I use this solution to design my description - https://stackoverflow.com/a/7629070/2013542, so there is something that I can add for this that it will work?

Thank you!

Maybe you can achieve the desired result with the enumitem package. You could then use something like \begin{description}[labelwidth =<width of your choice>] — leandriis, Jun 15 '19 at 14:42
See also https://tex.stackexchange.com/questions/67720/description-list-with-aligned-descriptions — David Purton, Jun 15 '19 at 14:42
Thank you @DavidPurton! But I'm using LyX so I need a solution for this (e.g. something to put at the preamble...) — heblyx, Jun 15 '19 at 14:51
If you want a quick solution, a tabularx environment would do the trick. Can LyX use tabularx? — David Purton, Jun 15 '19 at 14:54
Or how about this one: https://tex.stackexchange.com/q/130097/87678 — David Purton, Jun 15 '19 at 15:01
But the is a way to do it via this solution? https://stackoverflow.com/a/7629070/2013542 — heblyx, Jun 15 '19 at 15:18

score 1 · Accepted Answer · answered Jun 15 '19 at 16:08

This answer slightly adjusts Gonzalo Medina's answer to a similar problem, so that you only need make changes in the preamble and can continue to use the description environment as normal in LyX.

MWE

\documentclass{article}
\usepackage{xcolor}
\usepackage{polyglossia}
\setdefaultlanguage{hebrew}
\newfontfamily\hebrewfont[Script=Hebrew]{David CLM}

%% variable width label description set up
\usepackage{enumitem}
\usepackage{environ}
\newlength\widest
\renewcommand{\descriptionlabel}[1]{%
  \hspace{\labelsep}%
  \bfseries\textcolor{blue}{#1:}}
\newlist{heblyxdesc}{description}{1}
\makeatletter
\RenewEnviron{description}{%
  \vbox{%
    \global\setlength\widest{0pt}%
    \def\item[##1]{%
      \settowidth\@tempdima{\textbf{##1:}}%
      \ifdim\@tempdima>\widest\global\setlength\widest{\@tempdima}\fi%
    }%
    \setbox0=\hbox{\BODY}%
  }
  \begin{heblyxdesc}[
    leftmargin=\dimexpr\widest+0.5em\relax,
    labelindent=0pt,
    labelwidth=\widest,
    style=unboxed]
  \BODY
  \end{heblyxdesc}%
}
\makeatother

\begin{document}
\begin{description}
  \item[כחגלדך] דג סקרן שט לו ביום דג סקרן שט לו ביום דג סקרן שט לו ביום דג
    סקרן שט לו ביום דג סקרן שט לו ביום דג סקרן שט לו ביום דג סקרן שט לו ביום
  \item[כחגלדך כחגלדך]
    דג סקרן שט לו ביום דג סקרן שט לו ביום דג סקרן שט לו ביום דג סקרן שט לו
    ביום דג סקרן שט לו ביום דג סקרן שט לו ביום דג סקרן שט לו ביום דג סקרן שט
    לו ביום דג סקרן שט לו
\end{description}

\end{document}

Thank you!! It's Works! But if put a very long word this is what happen: https://i.imgur.com/NqqZ39r.png (look at the third label). How can I fix this? — heblyx, Jun 15 '19 at 19:39
@heblyx, I can not reproduce this with my MWE. Even long labels work properly. Check carefully that there are no differences from my code. And if still, then you could ask another question with a MWE. — David Purton, Jun 16 '19 at 10:00

How to make a space between the item at description?

1 Answers1

MWE