#### spatnav container 1(Document) > spatnav container 2 > spatnav container 3

          const redContainer = document.getElementsByClassName("container c1")[0];
          redContainer.addEventListener('keydown', function(e) {
            const dir = WASD_KEY_CODE[e.keyCode];
            if(window.navigate && dir) {
              window.navigate(dir);
              e.preventDefault();
            }
          }, true);