How do you change the extended network background?

my profile is blocked..... and u now when people click on ur profile ( if its blocked) it says '; this profile is blocked! to see his/her profile u must add them as a friend'; how can i change the color of that.... where its white can i change that and if i can how do i do it?How do you change the extended network background?
add background:



%26lt;style%26gt;

table.extendedNetwork {height:75px;}

table.extendedNetwork td {background-image:url(IMAGE URL); background-position:center center; background-repeat:no-repeat;}

%26lt;/style%26gt;



OR



change color:



%26lt;style%26gt;

table.extendedNetwork {height:75px;}

table.extendedNetwork td {background-color:black;}

%26lt;/style%26gt;