The marker-end CSS property points to a marker that will be drawn on the last vertex of the element's path; that is, at its ending vertex. The marker must have been defined using an SVG <marker> element, and can only be referenced with a <url> value. The value of the CSS property overrides any values of the marker-end attribute in the SVG.
For many marker-supporting shapes, the first and last vertices are the same point: for example, the top left corner of a <rect>. In such shapes, if both the first and last markers are defined, two markers will be drawn at that point, though they may not face the same direction.
Note: The marker-end property will only have an effect for elements that can use SVG markers. See marker-end for a list.