<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"> <title>Reference for marker linked to local-ref URL</title> <defs> <marker id="limeCircle" markerWidth="8" markerHeight="8" refX="5" refY="5"> <circle cx="5" cy="5" r="2" style="stroke: none; fill:lime;"/> </marker> <marker id="blueCircle" markerWidth="8" markerHeight="8" refX="5" refY="5"> <circle cx="5" cy="5" r="2" style="stroke: none; fill:blue;"/> </marker> <marker id="purpleCircle" markerWidth="8" markerHeight="8" refX="5" refY="5"> <circle cx="5" cy="5" r="2" style="stroke: none; fill:purple;"/> </marker> </defs> <style> path { stroke: blue; stroke-width: 2px; } </style> <path d="M20,20 L70,20 L120,20" style="marker-start: url(#limeCircle);"/> <path d="M20,40 L70,40 L120,40" style="marker-start: url(#blueCircle);"/> <path d="M20,60 L70,60 L120,60" style="marker-start: url(#blueCircle);"/> <path d="M20,80 L70,80 L120,80" style="marker-mid: url(#limeCircle);"/> <path d="M20,100 L70,100 L120,100" style="marker-mid: url(#blueCircle);"/> <path d="M20,120 L70,120 L120,120" style="marker-mid: url(#blueCircle);"/> <path d="M20,140 L70,140 L120,140" style="marker-end: url(#limeCircle);"/> <path d="M20,160 L70,160 L120,160" style="marker-end: url(#blueCircle);"/> <path d="M20,180 L70,180 L120,180" style="marker-end: url(#blueCircle);"/> </svg>