The CSS filter property provides for effects like blurring or color shifting on an element’s rendering before the element is displayed. Filters are commonly used to adjust the rendering of an image, a background, or a border.

Included in the CSS standard are several functions that achieve predefined effects. You can also reference a filter specified in SVG with a URL to an SVG filter element.

[Webplatform](docs.webplatform.org/wiki/css/properties/filter "Webplatform")
[Mozilla docs](https://developer.mozilla.org/en-US/docs/Web/CSS/filter "Mozilla")
[Caniuse](http://caniuse.com/#feat=css-filters "Caniuse")