<feDropShadow>

The <feDropShadow> SVG filter primitive creates a drop shadow of the input image. It can only be used inside a <filter> element.

[!NOTE] The drop shadow color and opacity can be changed by using the flood-color and flood-opacity presentation attributes.

Like other filter primitives, it handles color components in the linearRGB color space by default. You can use color-interpolation-filters to use sRGB instead.

Usage context

Attributes

• dx: This attribute defines the x offset of the drop shadow. Value type: <number>; Default value: 2; Animatable: yes
• dy: This attribute defines the y offset of the drop shadow. Value type: <number>; Default value: 2; Animatable: yes
• in
• 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: x, y, width, height, result

DOM Interface

This element implements the SVGFEDropShadowElement interface.

Example

html,
body,
svg {
  height: 100%;
}

<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>

Specifications

Browser compatibility

See also

• SVG Filter primitive attributes including height, in, result, x, y, and width.
• SVG presentation attributes, including flood-color, and flood-opacity.