It can get confusing with html documents, because the html bracket return acts as a newline. Here is a simple way to clean your html.

#!/usr/bin/perl
use warnings;
use strict;

open (FH,"< zz.html") or die "$!\n";
read( FH, $buf, -s FH );
close FH;

#print "$buf\n";
$buf =~ s/\n//g;  # strips out all newlines

open (OH,"> zz_out.html") or die "$!\n";
print OH $buf;
close OH;

# zz_out.html will not have any newlines when viewed with a text edito
+r, but will still be viewable in a web browser
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