LineFormats

<!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; }
    #main{
      width:500px;
      margin:0 auto;
    }
    
    .desc{
      font-family:Franklin Gothic Book;
      font-size:15px;
      margin-top:10px;
    }
    
    #solid{
      height:2px;
      background:black;
      width:100%;
    }
    
    #dashed{
      border-bottom:2px dashed black;
    }

#dotted{
      border-bottom:2px dotted black;
    }

#double{
      border-top:1px solid black;
      border-bottom:1px solid black;
      height:3px;
    }
    
  </style>
</head>

<div id="main">
  <div class="desc">
    Solid Border
  </div>
	<div id="solid">
  </div>
  <div class="desc">
    Dashed
  </div>
	<div id="dashed">
  </div>

<div class="desc">
    Dotted
  </div>
	<div id="dotted">
  </div>
  
  <div class="desc">
    Double Border
  </div>
	<div id="double">
  </div>
</div>

<body>
  <script>
    // Feel free to change or delete any of the code you see in this editor!
    var svg = d3.select("body").append("svg")
      .attr("width", 960)
      .attr("height", 500)

svg.append("text")
      .text("Edit the code below to change me!")
      .attr("y", 200)
      .attr("x", 120)
      .attr("font-size", 36)
      .attr("font-family", "monospace")

</script>
</body>

https://d3js.org/d3.v4.min.js