# Vertical space between horizontal lines

I have defined a macro for 2 closely spaced horizontal lines,

\newcommand{\myline}{\par\noindent%
\rule{\linewidth}{1.5pt} \\[-0.80\baselineskip]%
\rule{\linewidth}{0.8pt}}


Now I noticed that when putting it at different places in the text and at different environments, results in a slightly different vertical spacing between them. Is it possible to fix the spacing between them? (regardless of the line spacing in the environment they are inside)

Edit:

also when defining a linespace in definite units, it still depends on the font. For example:

\documentclass[a4paper,10pt,english]{article}
\usepackage{babel}
\usepackage{blindtext}

\newcommand{\myline}{\par\noindent%
\rule{\linewidth}{1.5pt} \\[-9pt]%
\rule{\linewidth}{0.8pt}}

\begin{document}
\noindent \blindtext
\myline

\begin{quotation}
\small \myline
\end{quotation}

\end{document}

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Just write \\[-3pt] or something like this with an explicit length (\baselineskip can change across environments). An example would be useful, anyway. – egreg Oct 7 '11 at 8:25
@egreg See my edit – PineApple Oct 7 '11 at 8:42
\\[x] doesn't work, it starts a new line after x. Even if x is explicit, the newline is not. – Roelof Spijker Oct 7 '11 at 9:01

You can try

\newcommand{\myline}{\par
\kern3pt % space above the rules
\hrule height 1.5pt
\kern2pt % space between the rules
\hrule height 0.8pt
\kern3pt % space below the rules
}


Change the spacings to suit your needs.

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Thanks! it seems stable – PineApple Oct 7 '11 at 11:04

This is because you are using \baselineskip, rather use a fixed value \\[3pt]

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