This will be rendered before the greeting.

Hello World

##

use 5.010;
use HTML::TreeBuilder;
use HTML::HTML5::Parser;

my $string = do { local $/ =  }; # slurp

say "HTML::HTML5::Parser...";
say HTML::HTML5::Parser
	-> load_html(string => $string)
	-> textContent;

say "HTML::TreeBuilder...";
say HTML::TreeBuilder
	-> new_from_content($string)
	-> as_text;

__DATA__
This will be rendered before the greeting.

Hello World