Ok, thank you, this is the way

exact syntax is

.container_serendipity_categories_plugin {
background-color: red !important;
}

hi !

I would like to change Categories background color. not all SideBar background color...

is it possible with CSS ? or should i use (and learn...) the Smarty templating system for that

thanks a lot

Ok,

I have ask my hosting administrator and it done.

hi,

after succeed installation,
on the sidebar, i have several messages like :

Warning: mysql_query() [http://www.mysql.com/doc]: Your query requires a full tablescan (table serendipity1_plugins, 12 rows affected). Use EXPLAIN to optimize your query. in /home/ecoles/eco-ornolac/sy9/include/db ...