.minus1 { font-size:25% }
.minus1 { font-size:50% }
.plus1 { font-size:150% }
.plus2 { font-size:200% }
.plus3 { font-size:300% }
.plus4 { font-size:400% }

.size1 { font-size:xx-small }
.size2 { font-size:x-small }
.size3 { font-size:small }
.size4 { font-size:medium }
.size5 { font-size:large }
.size6 { font-size:x-large }
.size7 { font-size:xx-large }

#underline { text-decoration:underline }
#strike { text-decoration:line-through }