files/en-us/web/api/svgfeoffsetelement/dy/index.md
{{APIRef("SVG")}}
The dy read-only property of the {{domxref("SVGFEOffsetElement")}} interface reflects the {{SVGAttr("dy")}} attribute of the given {{SVGElement("feOffset")}} element.
An {{domxref("SVGAnimatedNumber")}} object.
dy attributeIn this example, we access the vertical offset, or shift, of the <feOffset> element, using the dy read-only property of the SVGFEOffsetElement interface.
<svg viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg">
<defs>
<filter id="offsetFilter">
<!-- Applies an offset to the SourceGraphic -->
<feOffset in="SourceGraphic" dx="15" dy="10" />
</filter>
</defs>
<rect
x="20"
y="20"
width="100"
height="100"
fill="lightblue"
filter="url(#offsetFilter)" />
</svg>
// Select the feOffset element
const offsetElement = document.querySelector("feOffset");
// Access the dy property
console.log(offsetElement.dy.baseVal); // Output: 10
{{Specifications}}
{{Compat}}