History of -webkit-mask-position-y Revision history for: English (US) Sep 20, 2016, 8:03:16 AM Sebastianz Merged <length> and <percentage> description into <length-percentage> Previous May 4, 2016, 4:13:57 AM Sebastianz Added syntax example for multiple values Previous May 4, 2016, 4:09:10 AM Sebastianz Added syntax examples May 4, 2016, 3:25:19 AM Sebastianz Initial description of '-webkit-mask-position-y'