Q unitThe Q CSS length unit is an absolute length anchored to the physical measurement of quarter-millimeters. 1Q is equivalent to 1/40 of 1 centimeter.unitsUnitswidely2020-03-242022-09-24https://drafts.csswg.org/css-values-4/#absolute-lengthshttps://developer.mozilla.org/docs/Web/CSS/Reference/Values/lengthcss.types.length.Qhttps://nowyoucanuse.com/features--q-unit.html