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

1. 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.
2. It might not be supported in older versions of major browsers. It might be entirely unsupported in mobile browsers.