e so
          //   it can't go under a minsize of 1em anyway.
          // - The maxsize is theorically infinite, this only tests that a large
          //   value of 300em is clamped.
          assert_approx_equals(document.getElementById("default_minsize").getBoundingClientRect().height, 1 * emToPx, epsilon, "default minsize is 1em");
          assert_approx_equals(document.getElementById("default_maxsize").getBoundingClientRect().height, 300 * emToPx, epsilon, "default maxsize is infinity");
      }, `d