Overriding a li code.

Hey guys, my programmer used the code:

li {
	list-style-type: none;
}

Later on in the sales pages I wanted to have a list that displays the disk style type.

Is it possible to over ride that code above?

I tried using a class:

.liststyle1 {
	list-style-type: disk;
	margin-left: 25px;
}

But I don't think that works.. or atleast it wasn't showing up in the browser. Maybe there's something else I'm over looking but I think it's the li code above that's blocking it.

Is there a way to display the list style disk's in just one certain area?