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<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% }
line
</style>
</head>
<body>
<script>
// Feel free to change or delete any of the code you see!
var svg = d3.select("body").append("svg")
svg.append("rect")
.attr({x: 100, y: 10, width: 300, height: 170})
.style({ fill: "#6dc3e8"})
svg.append("rect")
.attr({x: 100, y: 70, width: 300, height: 50})
.style({ fill: "#e6d265"})
svg.append("polygon") // attach a polygon
.style("stroke", "black") // colour the line
.style("fill", "black") // remove any fill colour
.attr("points", "100,10, 225,96, 100,180"); // x,y points
</script>
</body>
https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js