<!DOCTYPE html>
<head>
<meta charset="utf-8">
</head>
<style>
.viz-bar .bar{
fill: steelblue;
}
</style>
<body>
<svg width="960" height="500">
<g transform="translate(50,50)"></g>
</svg>
<script src="https://d3js.org/d3.v4.min.js"></script>
<script src="//vizjs.org/viz.v1.3.0.min.js"></script>
<script>
var data=[{key:2, value:10},{key:3, value:4},{key:5, value:6},{key:8, value:1}];
d3.select("g").call(viz.bar().data(data).orient("left"));
</script>