link tabs

[melA~16]

i'm not sure which forum this should go in...but what i am trying to do is... to have a link e.g. gallery, and have two sub topics underneathe [after clicking on gallery] like so:
gallery
computer gen
freehand

any help would be greatly appreciated

Thanks

meL~~

[melA~16]

but...the "computer gen" and "free hand" are slightly to the right