diff --git a/demo.html b/demo.html
index aff64d76..35909619 100644
--- a/demo.html
+++ b/demo.html
@@ -1,4 +1,4 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<!doctype html>
 <html><head><title>bwip-js - demo</title>
 <!--
 	Copyright (c) 2011-2015 Mark Warren.
@@ -8,10 +8,10 @@
 -->
 <!--
 	Notes about making the text fit nicely to your bar code.
-	1. Specify textxalign=center or textxalign=justify.
-	2. Specify the text as the alttext to bypass the built-in formatting.
-	3. If you specify textyalign=above and text has descenders (characters: gjpqy_|,; )
-	   specify textyoffset=1
+	 1.	Specify textxalign=center or textxalign=justify.
+	 2.	Specify the text as the alttext to bypass the built-in formatting.
+	 3.	If you specify textyalign=above and text has descenders
+		(characters: gjpqy_|,; ) specify textyoffset=1
 -->
 <style type="text/css">
 #menu th {
