XF 1.3 CSS hide user info first post

[HenrikHansen]

I have added to extra css to hide user info first post

.messageList li:first-child .messageUserInfo {
display: none;
}

But I need some more extra css code move message text to left, now I have blank space where message user info used to be shown. Can anyone help?

 

[HenrikHansen]

I found out I need to add

.messageList li:first-child.message .messageInfo {
margin-left: 0;
}