/*  fontSize: */
.xs   {font-size: 0.75rem}
.sm   {font-size: 0.875rem}
.base {font-size: 1rem}
.lg   {font-size: 1.125rem}
.xl   {font-size: 1.25rem}
.2xl  {font-size: 1.5rem}
.3xl  {font-size: 1.875rem}
.4xl  {font-size: 2.25rem}
.5xl  {font-size: 3rem}
.6xl  {font-size: 4rem}
.fs1  {font-size: 1vw}
.fs2  {font-size: 1.4vw}
.fs3  {font-size: 1.6vw}
.fs4  {font-size: 1.8vw}
.fs5  {font-size: 2vw}
.fs6  {font-size: 2.2vw}
.fs7  {font-size: 2.4vw}
.fs8  {font-size: 2.6vw}