_name, "initial");

      /*
      The purpose of setting to the initial is to act as a fallback
      value in case the calc() function in the specified value
      fails or in case it generates an invalid value. Since we
      are running 6 consecutive tests on the same element,
      then it is necessary to 'reset' its property to the
      initial value.
      */

      targetElement.style.setProperty(property_name, specified_value);

      assert_equals(getComputedStyle(targetElement)[property_name], e