<!DOCTYPE html>
<html>
<head>
<style>
#test {
marker-end: url(#arrow);
}
</style>
</head>
<body>
<h1>The marker-end Property</h1>
<svg height="250" width="350" xmlns="http://www.w3.org/2000/svg">
<defs>
<marker id="arrow" markerWidth="10" markerHeight="10" refX="5" refY="5" orient="auto">
<path d="M 0 0 L 10 5 L 0 10 z" fill="black" />
</marker>
</defs>
<polyline id="test" points="35,40 35,170 200,170" stroke="red" stroke-width="3" fill="none" />
Sorry, your browser does not support inline SVG.
</svg>
</body>
</html>