[mimosa777]

In fact, i am using a third party skin. I am not that poor in css knowledge, except for this situation.
It is the first time that i see in a .css file something like :

#categories a { display: block; background-color: White; border-bottom: 1px solid #F9F9F9; } 
#categories a:hover { background-color: #F5F5F5; color: #C60000; text-decoration: none;}

The # is what making me confused. What is it exactly? is it the same as the ones start with the dot (ex : .name) ?

Do you please have an idea on how i can include or call the #categories in the categories.tpl file ?

Thanks again !