CSS3 Filters aka "Oh, for cripe's sake WHY AREN'T YOU USING CHROME?"
property and browser-specific prefixes -webkit-filter, -moz-filter, -o-filter, -ms-filter, filter
Note: Currently, only -webkit-filter (Safari and Chrome) works, but others should be available in the future. Additionally, you should always put the prefixed property (e.g. -webkit-filter) before the regular property (e.g. filter) when listing style rules so that the regular property takes precedence if the property is eventually implemented cross-browser.
currently available filter elements grayscale(0% to 100%) - how much gray? sepia(0% to 100%) - how much sepia? saturate(0% to 100%) - how much color? hue-rotate(0deg to 360deg) - how far do you want to rotate the color wheel? invert(0% to 100%) - how much color inversion? [note: currently only full invert works] opacity(0.0 to 1) - how transparent towards full visible should we go? brightness(0.0 to 1 to desired .) - how much towards white should we go? contrast(0% to 100% to desired %) - how much contrast should we remove or add? blur(radius in px) - how far outward should we blur?