| <svg xmlns="http://www.w3.org/2000/svg"> | |
| <marker id="marker1" viewBox="0 0 10 10" refX="5" refY="5" markerWidth="5" markerHeight="5"> | |
| <rect width="10" height="10" fill="yellow"/> | |
| </marker> | |
| <path d="M50,50 L150,50 L150,150 L50,150 z" marker-start="url(#marker1)" stroke="green" stroke-width="20" fill="blue" paint-order="stroke"/> | |
| </svg> |
