.disco {list-style-type:disc;}
.circulo {list-style-type:circle}
.cuadrado {list-style-type:square}

.decimal1 {list-style-type:decimal}
.decimal2 {list-style-type:decimal-leading-zero}
.romanos1 {list-style-type:upper-roman}
.romanos2 {list-style-type:lower-roman}
.alf1 {list-style-type:upper-alpha}
.alf2 {list-style-type:lower-alpha}