        
PASS: Element grayscale-box had filter value grayscale(1) before animation.
PASS: Element sepia-box had filter value sepia(1) before animation.
PASS: Element saturate-box had filter value saturate(1) before animation.
PASS: Element huerotate-box had filter value hue-rotate(90deg) before animation.
PASS: Element invert-box had filter value invert(1) before animation.
PASS: Element opacity-box had filter value opacity(0) before animation.
PASS: Element brightness-box had filter value brightness(0) before animation.
PASS: Element contrast-box had filter value contrast(0) before animation.
PASS: Element blur-box had filter value blur(10px) before animation.
PASS - "webkitFilter" property for "grayscale-box" element at 1s saw something close to: grayscale(0.5)
PASS - "webkitFilter" property for "sepia-box" element at 1s saw something close to: sepia(0.5)
PASS - "webkitFilter" property for "saturate-box" element at 1s saw something close to: saturate(0.5)
PASS - "webkitFilter" property for "huerotate-box" element at 1s saw something close to: hue-rotate(90deg)
PASS - "webkitFilter" property for "invert-box" element at 1s saw something close to: invert(0.5)
PASS - "webkitFilter" property for "opacity-box" element at 1s saw something close to: opacity(0.5)
PASS - "webkitFilter" property for "brightness-box" element at 1s saw something close to: brightness(0.5)
PASS - "webkitFilter" property for "contrast-box" element at 1s saw something close to: contrast(0.5)
PASS - "webkitFilter" property for "blur-box" element at 1s saw something close to: blur(10px)