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<feDropShadow>

The <feDropShadow> filter primitive creates a drop shadow of the input image. It is a shorthand filter, and is defined in terms of combinations of other filter primitives.

The result of the <feDropShadow> filter is equivalent to the following:

<feGaussianBlur in="alpha-channel-of-feDropShadow-in"
    stdDeviation="stdDeviation-of-feDropShadow"/>
<feOffset dx="dx-of-feDropShadow" dy="dy-of-feDropShadow"
    result="offsetblur"/>
<feFlood flood-color="flood-color-of-feDropShadow"
    flood-opacity="flood-opacity-of-feDropShadow"/>
<feComposite in2="offsetblur" operator="in"/>
<feMerge>
  <feMergeNode/>
  <feMergeNode in="in-of-feDropShadow"/>
</feMerge>

Usage context

Categories	Filter primitive element
Permitted content	Any number of the following elements, in any order: `<animate>`, `<script>`, `<set>`

Attributes

Global attributes

Specific attributes

class
style
in
stdDeviation
dx
dy

DOM Interface

This element implements the SVGFEDropShadowElement interface.

Example

SVG

<svg width="200" height="200" xmlns="http://www.w3.org/2000/svg">
  <defs>
    <filter id="shadow">
      <feDropShadow dx="4" dy="8" stdDeviation="4"/>
    </filter>
  </defs>

  <circle cx="50%" cy="50%" r="80"
      style="fill:blue; filter:url(#shadow);"/>
</svg>

Result

Specifications

Specification	Status	Comment
Filter Effects Module Level 1 The definition of '<feDistantLight>' in that specification.	Working Draft	Initial definition

Browser compatibilityUpdate compatibility data on GitHub

	Desktop
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari
Basic support	Yes	No	Yes	No	Yes	?
`dy`	Yes	No	Yes	No	Yes	?
`dx`	Yes	No	Yes	No	Yes	?
`in`	Yes	No	Yes	No	Yes	?
`stdDeviation`	Yes	No	Yes	No	Yes	?

	Mobile
	Android webview	Chrome for Android	Edge Mobile	Firefox for Android	Opera for Android	iOS Safari	Samsung Internet
Basic support	?	Yes	No	Yes	Yes	?	?
`dy`	?	Yes	No	Yes	Yes	?	?
`dx`	?	Yes	No	Yes	Yes	?	?
`in`	?	Yes	No	Yes	Yes	?	?
`stdDeviation`	?	Yes	No	Yes	Yes	?	?