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The <feDropShadow> SVG filter primitive creates a drop shadow of the input image. It can only be used inside a {{SVGElement('filter')}} element.

[!NOTE] The drop shadow color and opacity can be changed by using the {{SVGAttr('flood-color')}} and {{SVGAttr('flood-opacity')}} presentation attributes.

Like other filter primitives, it handles color components in the linearRGB {{glossary("color space")}} by default. You can use {{svgattr("color-interpolation-filters")}} to use sRGB instead.

Usage context

{{svginfo}}

Attributes

  • {{SVGAttr("dx")}}: This attribute defines the x offset of the drop shadow. Value type: <number>; Default value: 2; Animatable: yes
  • {{SVGAttr("dy")}}: This attribute defines the y offset of the drop shadow. Value type: <number>; Default value: 2; Animatable: yes
  • {{SVGAttr("in")}}
  • {{SVGAttr("stdDeviation")}}: This attribute defines the standard deviation for the blur operation in the drop shadow. Value type: <number-optional-number>; Default value: 2; Animatable: yes
  • Filter primitive attributes: {{SVGAttr("x")}}, {{SVGAttr("y")}}, {{SVGAttr("width")}}, {{SVGAttr("height")}}, {{SVGAttr("result")}}

DOM Interface

This element implements the {{domxref("SVGFEDropShadowElement")}} interface.

Example

css
html,
body,
svg {
  height: 100%;
}
html
<svg viewBox="0 0 30 10" xmlns="http://www.w3.org/2000/svg">
  <defs>
    <filter id="shadow">
      <feDropShadow dx="0.2" dy="0.4" stdDeviation="0.2" />
    </filter>
    <filter id="shadow2">
      <feDropShadow dx="0" dy="0" stdDeviation="0.5" flood-color="cyan" />
    </filter>
    <filter id="shadow3">
      <feDropShadow
        dx="-0.8"
        dy="-0.8"
        stdDeviation="0"
        flood-color="pink"
        flood-opacity="0.5" />
    </filter>
  </defs>

  <circle cx="5" cy="50%" r="4" fill="pink" filter="url(#shadow)" />
  <circle cx="15" cy="50%" r="4" fill="pink" filter="url(#shadow2)" />
  <circle cx="25" cy="50%" r="4" fill="pink" filter="url(#shadow3)" />
</svg>

{{EmbedLiveSample('Example', 150, '100%')}}

Specifications

{{Specifications}}

Browser compatibility

{{Compat}}

See also