<!DOCTYPE HTML>
<style>
body { writing-mode: vertical-lr; text-orientation: sideways-right; }
#outer { width: 0; height: 0; }
/*
In a 450px container, the minimum font size at 15em per line is 30px.
This means we map 0px-45px into 30px-45px, so 12px gets mapped to 34px.
*/
#inner { font-size: 34px; width: 100%; height: 100%; }
</style>
<div id="outer">
<div id="inner">Inflated?