example input:

max volume : 25
step: 5
prefix : max_w
postfix : p
attribute class : max-width
units : %

example out:

.max_w0p { max-width: 0%;}
.max_w5p { max-width: 5%;}
.max_w10p { max-width: 10%;}
.max_w15p { max-width: 15%;}
.max_w20p { max-width: 20%;}
.max_w25p { max-width: 25%;}