body {
  font-size: 13px;
 *font-size: small;
 *font: x-small;
}
table {
  font-size: inherit;
  font: 100%;
}
select, input, textarea {     /* 99% for safari; 100% is too large */
  font-size: 99%;
}
pre, code {     /* Bump up !IE to get to 13px equivalent */
  font: 115% monospace;
  *font-size: 100%;
}
/*
 77% === 10px
 85% === 11px
 93% === 12px
100% === 13px
108% === 14px
116% === 15px
123.1% = 16px
131% === 17px
138.5% = 18px
146.5% = 19px
153.9% = 20px
161.6% = 21px
167% === 22px
174% === 23px
182% === 24px
189% === 25px
197% === 26px
246% === 32px = xx-large
*/