body.logged-in li.uk-nav-header.login {
    display: none;
}

li.uk-nav-header.logout {
    display: none;
}
body.logged-in li.uk-nav-header.logout {
    display: block;
}

.widget_mo_oauth_widget {
    /*display: none;*/
}

/* impulse.de */
ul#menu-navigation .uk-nav-header.login,
ul#menu-navigation .uk-nav-header.logout {
    /*display: none;*/
}

#breadcrumb h1 img {
    display: none;
}