animation animation-name border-color background-color background-image border-top-color border-right-color border-bottom-color border-left-color border-color border-radius border-top-radius border-right-radius border-bottom-radius border-left-radius border-top-style border-right-style border-bottom-style border-left-style box-shadow color column-gap (use relative padding/margin measurements?) column-width (percentage? like width?) content (conflict with clear: none | normal) font list-style-image list-style outline-color outline text-shadow transform transform-origin transition user-selet