bar chart

<!DOCTYPE html>
<head>
  <meta charset="utf-8">
  <script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script>
  <style>
    body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }
    //svg { width:100%; height: 100% }
  </style>
</head>

<body>
  <script>
var dataset = [ 5, 10, 13, 19, 21, 25, 22, 18, 15, 13,
                11, 12, 15, 20, 18, 17, 16, 18, 23, 25 ];
var w=500;
var h=100;
var barPadding = 1;

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

svg.selectAll("rect")
.data(dataset)
.enter()
.append("rect")
.attr("x", function(d, i) {
    return i * (w / dataset.length);
})
.attr("y",function(d){return h-d})
.attr("width", w / dataset.length - barPadding)
.attr("height",function(d){return d*4})
.attr("fill", function(d) {
    return "rgb(0, 0, " + (d * 10) + ")";
});

svg.selectAll("text")
   .data(dataset)
   .enter()
   .append("text")
   .text(function(d){return d})
   .attr("x", function(d, i) {
        return i * (w / dataset.length)+5;
   })
   .attr("y", function(d) {
        return h - (d * 4)+15;
   })
   .attr("font-family", "sans-serif")
   .attr("font-size", "11px")
   .attr("fill", "white");

</script>
</body>

https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js