i'm newbie to html, i want to create html page in A3 mode, i have download this code from github A3.HTML :
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>A3 landscape</title>
<!-- Normalize or reset CSS with your favorite library -->
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/normalize/7.0.0/normalize.min.css">
<!-- Load paper.css for happy printing -->
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/paper-css/0.4.1/paper.css">
<!-- Set page size here: A5, A4 or A3 -->
<!-- Set also "landscape" if you need -->
<style>@page { size: A3 landscape }</style>
</head>
<!-- Set "A5", "A4" or "A3" for class name -->
<!-- Set also "landscape" if you need -->
<body class="A3 landscape">
<!-- Each sheet element should have the class "sheet" -->
<!-- "padding-**mm" is optional: you can set 10, 15, 20 or 25 -->
<section class="sheet padding-10mm">
<!-- Write HTML just like a web page -->
<article>This is an A3 document (landscape).</article>
</section>
</body>
</html>
Now i want to divide my A3 in two A4 ( like opening a book, left page and right page ),example
i want to be able to write in the left page and the right one, can someone help me ? Thanks :)