<div id ='chart'>
<h3><code>margin()<code></h3>
<p>Change the margin inside the svg container. By <code>default</code> margin set to <code>4</code></p>
<p>We can also set the margin for each side of the chart.</p>
<p>The map below has margin: <code>.margin({ top: 0, left: 30, right: 260, bottom: 130});</code></p>  
</div>  
<div id="elm"></div>

#chart{
  margin: 1em;
}

//RedSift
//projection
//Change projection on viewing the world map.

let geo = d3_rs_geo.html()
                   .margin({ top: 0, left: 30, right: 260, bottom: 130});

    d3.select('#elm')
      .datum({ url: 'https://static.redsift.io/thirdparty/topojson/examples/world-50m.json' }) //world topoJSON
      .call(geo);