unable to format Views Carousel???!!!!

Hi,

I am sure this is just the simplest thing, but I have following the video tutorial and cannot seem to format the carousel.

this is the code I have inserted into the top of my style sheet. Nothing changes.

A problem I have is that i cannot follow the video tutroial exactly because firebug does nto seem to work on my version of firefox therefore when the guide magically selects the block to print the text i.e. 'block-views-front_page_slideshow-block-1', I have no idea where to find this piece of code and check whether it is correct... I am just guessing because my view is called front_page_slideshow.

And help greatly appreciated... I got lost on the video after this as said i'm not using firebug?

thanks

#block-views-front_page_slideshow-block-1 .jcarousel-container-horizontal{width:700px;

}

#block-views-front_page_slideshow-block-1 .jcarousel-clip-horizontal 	{width: 700px;
												height: 200px;
												}