CSS font-optical-sizing Property - Playground Example

<!DOCTYPE html><html><head><style type="text/css">@font-face {
  src: url("images/AmstelvarAlpha-VF.ttf");
  font-family: "Amstelvar";
  font-style: normal;
}

p {
  font-size: 36px;
  font-family: Amstelvar;
}

.no-optical-sizing {
  font-optical-sizing: none;
}</style></head><body><p class="optical-sizing">
  This paragraph is optically sized. This is the default across browsers.
</p>

<p class="no-optical-sizing">
  This paragraph is not optically sized. You should see a difference in
  supporting browsers.
</p></body></html>