Hiding the text "Showing posts with label "Label Name". Show all posts"

Maybe all of you is not understand about my title on this post..
This post is about text or picture to emerge if you clikc a label of post..
the text is "Showing posts with label "Label Name". Show all posts"
this is the picture

To hiding that, the methode is
1. log in to your blog....
2. go to edit html..
3. Clikc Expand Template Widget..
4. find this code

]]></b:skin>

Write this code above that code

.status-msg-wrap{
display:none;
}

Or if not success..(because any template cannot success..)
you write this code..

.status-msg-wrap{
display:none;
}
.status-msg-body{
display:none;
}
.status-msg-border{
display:none;
}

above this code

]]></b:skin>

so the text or picture is hidded...