Wizardry Technique Converter

PX TO PERCENT - SHORTCUT
item px width / parent px width
example: 960/1920 space enter

PX TO EM / REM - SHORTCUT
type in any px value without the px unit
example: 967 space enter

PX TO EM / REM - OPTIONS

setunit (toggles between em / rem)
getunit (returns selected unit)

setbase (toggles between 1vw & 16px base font size)
getbase (returns selected base font size)

setsize1920 (sets artboard width to 1920)
getsize (returns selected artboard width)

note: setsize only used if base is 1vw