d3-introduction

<!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 gaussianDataGenerator = d3.random.normal();
    var margin = {top: 20, right: 10, bottom: 20, left: 10};
    var width = 960 - margin.left - margin.right;
    var height = 500 - margin.top - margin.bottom;
    
    // Create the svg container
    var svg = d3.select("body").append("svg")
      .attr("width", width + margin.left + margin.right)
      .attr("height", height + margin.top + margin.bottom)
    	.append("g")
      .attr("transform", "translate(" + margin.left + "," + margin.top + ")");
		// Create some rectangles inside the svg container
    var rectangles = svg.selectAll("rect")
    										.data([1,2,3,4,5])
       									.enter()
    										.append("rect")
       									.attr('x', function(d){
                          return d + 1
                        }) 
       									.attr('y', function(d){
                        	return d + 2
                        })
    	 									.attr("width", width)
    	 									.attr("height", height)
       									.style({ fill: "#196496"})
  </script>
</body>

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