concat-charset.css

/* This is invalid CSS, but frequently happens as a result of concatenation. */
@charset "utf-8";
#foo {
	border-width:1px;
}
/*
Note that this is erroneous!
The actual CSS file can only have a single charset.
However, this is the job of the author/application.
The compressor should not get involved.
*/
@charset "another one";
#bar {
	border-width:10px;
}