<!DOCTYPE HTML>
<style>
@font-face { font-family: Ahem; src: url(../fonts/Ahem.ttf); }
html, body { margin: 0; padding: 0; }
body { width: 10px }
p {
  margin: 0;
  background: yellow;
  color: blue;
  float: left;
  width: auto; /* computes to 60px */
  font: 12px Ahem;
}
</style>
<!--
In a 60px container, the minimum font size at 15em per line is 4px.
-->
<p>This is tiny bit of text.</p>