D3 Examples - SVG line using D3

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<!DOCTYPE html>
<head>
  <meta charset="utf-8">
  <script src="https://d3js.org/d3.v4.min.js"></script>
  <style>
    body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }
  </style>
</head>
​
<body>
  <div id="d3-drawing-area"></div>
  
  <script>
    var svg = d3.select('#d3-drawing-area').append('svg')
      .attr('width', 300)
      .attr('height', 300)
      .style('background', 'lightblue');
​
    var line = svg.append('line')
        .attr('x1', 100)
        .attr('y1', 100)
        .attr('x2', 200)
        .attr('y2', 200)
        .style('stroke', 'blue');
​
  </script>
</body>
​
    