<!DOCTYPE html>
<html class="reftest-wait">
<style>
body { font-family: One; }
</style>
<script>
var f1 = new FontFace("One", "url(../fonts/markA.ttf)");
var f2 = new FontFace("One", "url(../fonts/mark2A.ttf)");

f1.load();
f2.load();

Promise.all([f1.load(), f2.load()])
  .then(function() {
    document.fonts.add(f1);
    document.fonts.add(f2);
  })
  .then(document.fonts.ready)
  .then(function() {
    document.fonts.delete(f2);
    document.documentElement.className = "";
  });
</script>
<p>ABC</p>