/usr/share/source-highlight/xhtmlcss.outlang is in libsource-highlight-common 3.1.6-2ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 | include "css_common.outlang"
doctemplate
"<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\"
\"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">
<html>
<head>
<meta http-equiv=\"Content-Type\" content=\"text/html; charset=iso-8859-1\" />
<meta name=\"GENERATOR\" content=\"$additional\" />
<meta name=\"INPUTLANG\" content=\"$inputlang\" />
<title>$title</title>
<link rel=\"stylesheet\" href=\"$css\" type=\"text/css\" />
</head>
<body>
$header<pre><tt>"
"</tt></pre>
$footer</body>
</html>
"
end
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