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@font-face { font-family: Ahem; src: url(../fonts/Ahem.ttf); }
html, body { margin: 0; padding: 0; }
body { width: 450px }
p {
margin: 0;
background: yellow;
color: blue;
width: -moz-fit-content; /* computes to 300px */
font: 12px Ahem;
In a 300px container, the minimum font size at 15em per line is 20px.
This means we map 0px-30px into 20px-30px, so 12px gets mapped to 24px.
<p>This is tiny bit of text.</p>