https://websemantics.uk/tools/convert-pixel-point-em-rem-percent/
https://websemantics.uk/articles/font-size-conversion/
Point Pixel Em Percent Keyword Default sans-serif
6pt 8px 0.5em 50% Sample
7pt 9px 0.55em 55% Sample
7.5pt 10px 0.625em 62.5% x-small Sample
8pt 11px 0.7em 70% Sample
9pt 12px 0.75em 75% Sample
10pt 13px 0.8em 80% small Sample
10.5pt 14px 0.875em 87.5% Sample
11pt 15px 0.95em 95% Sample
12pt 16px 1em 100% medium Sample
13pt 17px 1.05em 105% Sample
13.5pt 18px 1.125em 112.5% large Sample
14pt 19px 1.
