(def unitless-css-props
(into #{}
(for [key ["animation-iteration-count" "box-flex" "box-flex-group" "box-ordinal-group" "column-count" "flex" "flex-grow" "flex-positive" "flex-shrink" "flex-negative" "flex-order" "grid-row" "grid-column" "font-weight" "line-clamp" "line-height" "opacity" "order" "orphans" "tab-size" "widows" "z-index" "zoom" "fill-opacity" "stop-opacity" "stroke-dashoffset" "stroke-opacity" "stroke-width"]
prefix ["" "-webkit-" "-ms-" "-moz-" "-o-"]]
(str prefix key))))