koreader/plugins/downloadtoepub.koplugin/libs/gazette/resources/htmldocument/template.lua

local Template = {}

Template.HTML = [[<html xmlns="http://www.w3.org/1999/xhtml">
<head>
  <title>%s</title>
</head>
<body>
<header>
<h1>%s</h1>
</header>
<main>
%s
</main>
<footer>
</footer>
</body>
</html>]]

return Template