How do I remove the avatar from the search bar?

Inputing this code below to my template.css file does not work from this posting:

#dc_quick-discussion .avatar {
display : none;
}

.discuss-searchbar .discuss-avatar {
display: none;
}


I have attached my template.css before adding the code so you can see if there is some custom line that is causing the issue of not removing the avatar.


Thanks