There is no such property as "btm" you mean "bottom"
You will rarely ever use position:relative to move elements around so don't A relative element is only moved visually and not physically and is usually used for more subtle overlapping effects. The space that a relative element originally occupied is always preserved as if the element had never moved.
Don't use inline styling either - add a class and control it from the stylesheet.
This doesn't want to take a position within the menu classes:
position:relative; top: 0px; left:15px; width:200px;
No does adjusting the following margin affect it.
<font color='Red'> margin:2px 0;</font>
So how can the menus be positioned?
Again you are mis-using relative positioning and is unlikely to be what you want.
You can move elements around using margins quite easily or if you need horizontal alignment you would need to float the element.
I'd need to see your html to help any further as I don't know where you want the element and what structure it resides in.
Can you post some html or do you have a link to the page in question?