More important than !important
Update (28/7/2017): Doesn’t work in Firefox as it cascades differently and this won’t work in browsers than don’t support Web Animations. Some clever attempts to break include background: linear-gradient(blue, blue) (that technically sets a generated image, not a color, but fixed it anyway in the Pen by animating background instead) and filter: hue-rotate(90deg) (I wouldn’t […]