trying to use CSS to remove stickky post meta

Hi,

I want to remove the meta (posted on…posted in..info) from a sticky post and wanted to do it with CSS if possible. I have found Esmi’s instructions using loop.php but i would rather use my stylesheets. I also want to play with borders around this sticky to make it different from the regular post’s
My site.

I have tried things like:

post-1140, .entry-meta {
display: none;
}
post-1140,  .entry-utility{
display: none;
}
and
#post-1140 .entry-meta .entry-utility, #post-1140{
    display: none;
}