() {\n    d3.select(this)\n      .transition()\n      .duration(100)\n      .attr(\"transform\", `rotate(-2,${width / 2},${height / 2})`)\n      .transition()\n      .duration(100)\n      .attr(\"transform\", `rotate(2,${width / 2},${height / 2})`)\n      .transition()\n      .duration(100)\n      .attr(\"transform\", `rotate(-1,${width / 2},${height / 2})`)\n      .transition()\n      .duration(100)\n      .attr(\"transform\", `rotate(1,${width / 2},${height / 2})`)\n      .transition()\n      .duration(10