Filter Property

Blur

HTML

<img src='donald-duck.png' alt='Donald Duck' title='Donald Duck' />

CSS

img {
  -webkit-filter: blur(1px);
  filter: blur(1px);
}

Result

Makes you wanna rub your glasses.

Drop Shadow (use box-shadow instead if possible)

HTML

<p>My shadow always follows me.</p>

CSS

p {
  -webkit-filter: drop-shadow(10px 10px 1px green);
  filter: drop-shadow(10px 10px 1px green);
}

Result

Hue Rotate

HTML

<img src='donald-duck.png' alt='Donald Duck' title='Donald Duck' />

CSS

img {
  -webkit-filter: hue-rotate(120deg);
  filter: hue-rotate(120deg);
}

Result

Multiple Filter Values

To use multiple filters, separate each value with a space.

HTML

<img src='donald-duck.png' alt='Donald Duck' title='Donald Duck' />

CSS

img {
  -webkit-filter: brightness(200%) grayscale(100%) sepia(100%) invert(100%);
  filter: brightness(200%) grayscale(100%) sepia(100%) invert(100%);
}

Result

Invert Color

HTML

<div></div>

CSS

div {
  width: 100px;
  height: 100px;
  background-color: white;
  -webkit-filter: invert(100%);
  filter: invert(100%);
}

Result

Turns from white to black.

Syntax

• filter: none (default value)
• filter: initial (defaults to none);
• filter: inherit (defaults to parent value);
• filter: blur(px)
• filter: brightness(number | %)
• filter: contrast(number | %)
• filter: drop-shadow(horizontal-shadow-px vertical-shadow-px shadow-blur-px shadow- - spread color)
• filter: greyscale(number | %)
• filter: hue-rotate(deg)
• filter: invert(number | %)
• filter: opacity(number | %)
• filter: saturate(number | %)
• filter: sepia(number | %)

Parameters

Value	Description
blur(x)	Blurs the image by x pixels.
brightness(x)	Brightens the image at any value above 1.0 or 100%. Below that, the image will be darkened.
contrast(x)	Provides more contrast to the image at any value above 1.0 or 100%. Below that, the image will get less saturated.
drop-shadow(h, v, x, y, z)	Gives the image a drop-shadow. h and v can have negative values. x, y, and z are optional.
greyscale(x)	Shows the image in greyscale, with a maximum value of 1.0 or 100%.
hue-rotate(x)	Applies a hue-rotation to the image.
invert(x)	Inverts the color of the image with a maximum value of 1.0 or 100%.
opacity(x)	Sets how opaque/transparent the image is with a maximum value of 1.0 or 100%.
saturate(x)	Saturates the image at any value above 1.0 or 100%. Below that, the image will start to de-saturate.
sepia(x)	Converts the image to sepia with a maximum value of 1.0 or 100%.

Remarks

Since filter is an experimental feature, you should use the -webkit prefix. It may change in syntax and behavior, but the changes are probably going to be small.

It might not be supported in older versions of major browsers. It might be entirely unsupported in mobile browsers.

Due to its relatively limited support, try to use `box-shadow` instead of `filter: drop-shadow()`. Use `opacity` instead of `filter: opacity()`.

It can be animated through Javascript/jQuery. For Javascript, use `object.style.WebkitFilter`.

Check [W3Schools](http://www.w3schools.com/cssref/css3_pr_filter.asp) or [MDN](https://developer.mozilla.org/en/docs/Web/CSS/filter) for more info.

W3Schools also has a [demo page](http://www.w3schools.com/cssref/playit.asp?filename=playcss_filter&preval=hue-rotate(90deg)) for all the different type of filter values.