.fxxs     { font-size: xx-small; line-height: 150% }
.fxs   { font-size: x-small; line-height: 150% }
.fs  { font-size: small; line-height: 150% }
.fm  { font-size: medium; line-height: 150% }
.fl  { font-size: large; line-height: 150% }
.fxl  { font-size: x-large; line-height: 150% }
.fxxl  { font-size: xx-large; line-height: 150% }
.f10  { font-size: 10px; line-height: normal }
.f12 { font-size: 12px; line-height: normal }
.f14 { font-size: 14px; line-height: normal }
.f16 { font-size: 16px; line-height: normal }
.f18 { font-size: 18px; line-height: normal }
.f20 { font-size: 20px; line-height: normal }