html { font-size: $font-size-sm; @include breakpoint-up(md) { font-size: $font-size-md; } } // _setting.scss @forward “variables”; @forward “mixins/breakpoints"; // _base.scss @use “variables"; @use “mixins/breakpoints"; html { font-size: variables.$font-size-sm; @include breakpoints.breakpoint-up(md) { font-size: variables.$font-size-md; } }