Can I add a background to a <pre> on blogger?

Question

what I want to do is to add a CSS background to a <pre>.

Is it posible to do it like this?

pre{
    background-color: EBECE4; 
} 

or I need to do a little more? I try like that but I did not work.

Answer 1

yes you can but put color with "#"

pre{
    background-color: #EBECE4; 
} 

Answer 2

almost there:

pre{
    background-color: #EBECE4; 
}