.negrita {font-weight: bold;}
.cursiva {font-style: italic;}
.grande {font-size: 20px;}
.pequeño {font-size: 12px;}
.enorme {font-size: 30px;}
.enano {font-size: 9px;}
.tachado {text-decoration: line-through}
.subrayado {text-decoration: underline}