https://github.com/twbs/rfs\n\n// Configuration\n\n// Base font size\n$rfs-base-font-size: 1.25rem !default;\n$rfs-font-size-unit: rem !default;\n\n// Breakpoint at where font-size starts decreasing if screen width is smaller\n$rfs-breakpoint: 1200px !default;\n$rfs-breakpoint-unit: px !default;\n\n// Resize font-size based on screen height and width\n$rfs-two-dimensional: false !default;\n\n// Factor of decrease\n$rfs-factor: 10 !default;\n\n@if type-of($rfs-factor) != \"number\" or $rfs-factor <= 1 {\n  @error \"`#{$rfs-factor}`...