Size 1 / 48px / 3rem .bp-fs-1
Size 2 / 32x / 2rem .bp-fs-2
Size 3 / 24px / 1.5rem .bp-fs-3
Size 4 / 20px / 1.25rem .bp-fs-4
Size 5 / 16px / 1rem .bp-fs-5
Size 6 / 14px / 0.875rem .bp-fs-6
Size 7 / 12px / 0.75rem .bp-fs-7
Size 8 / 10px / 0.625rem .bp-fs-8