function(){
        var target = document.getElementById("gapPx");
        assert_equals(getComputedStyle(target).rowGap, "12px");
        assert_equals(getComputedStyle(target).columnGap, "12px");
      }, "gap accepts pixels");
    test(
      function(){
        var target = document.getElementById("gapPxTwo");
        assert_equals(getComputedStyle(target).rowGap, "12px");
        assert_equals(getComputedStyle(target).columnGap, "8px");
      }, "gap accepts pixels 2");
    test(
      function(){
    