D3: svg, path, d3.selectAll, .style: Sketch and Fill Triangle
<!DOCTYPE html>
<html>
<head>
<meta name="description"
content="Use path mini-language to trace a triangle and fill it">
</head>
<body>
<script src="http://d3js.org/d3.v3.min.js" charset=" utf-8"></script>
<svg width="720" height="120">
<path d="M 10 10 L 310 10 L 160 110 Z"/>
</svg>
<script>
d3.selectAll('path').style('fill', 'darkkhaki');
</script>
</body>
</html>