Https://www.freecodecamp.org/learn/data-visualization/data-visualization-with-d3/change-the-color-of-an-svg-element

help me with this code

<body>
  <script>
    const dataset = [12, 31, 22, 17, 25, 18, 29, 14, 9];

    const w = 500;
    const h = 100;

    const svg = d3.select("body")
                  .append("svg")
                  .attr("width", w)
                  .attr("height", h);

    svg.selectAll("rect")
       .data(dataset)
       .enter()
       .append("rect")
       .attr("x", (d, i) => i * 30)
       .attr("y", (d, i) => h - 3 * d)
       .attr("width", 25)
       .attr("height", (d, i) => 3 * d)
       // Add your code below this line

      .attr("fill","navy")

       // Add your code above this line
  </script>
</body>'

@vivekmm1 What browser are you using?