There was a brief era where we wrote

background: -webkit-gradient(linear, left top, right top, from(), color-stop(50%, ), to());

rather than

background: linear-gradient(left, , 50%, );

and to this day I still want to know how WebKit landed on such verbose syntax. Was it to be easier to parse? Easier to teach? CSS is known for being a terse syntax, so the old syntax feels so out of place.