Example of using property name interpolation in Less.

example.less

.mySelector {
  .remSize(font-size, 1.2);
}

.remSize(@property; @sizeValue) {
    
    @remValue: @sizeValue;
    @pxValue: round((@sizeValue * unit(@fontSizeStandard)));
    @{property}: ~"@{pxValue}px"; 
    @{property}: ~"@{remValue}rem";
}