Floting Notice position

[brattanek]

At Xenforo 1 I use code to center floating massage and adjust distance from top. Code was add to extra.css

.pageContent .FloatingContainer {
    top: 100px;
    left: 0;
    right: 0;
    margin: 0 auto;
}

But at Xen 2 don't work, any ideas how to fix it?

 

[M@rc]

.notices.notices--floating{
position: fixed !important;
top: 200px !important;
left: 0 !important;
right: 0 !important;
margin: 0 auto !important;
}