cent");
        assert_equals(getComputedStyle(target).columnGap, "15%");
      }, "column-gap accepts percentage");
    test(
      function(){
        var target = document.getElementById("columnGapCalc");
        assert_equals(getComputedStyle(target).columnGap, "14px");
      }, "column-gap accepts calc()");
    test(
      function(){
        var target = document.getElementById("columnGapCalcFixedPercent");
        assert_equals(getComputedStyle(target).columnGap, "calc(10% + 5px)");
      }, "column-