Make banner stay at top?

[4r5hw45twh]

I want to create an announcement banner that stays at the top of the screen. I started with:

Code:

.skinHeader::after {
    content: "Introducing: LiveTV. This is experimental.";
    display: block;
    position: relative;
    background-color: #a60011;
    color: #ffffff;
    text-align: center;
    padding: 10px 0;
    font-weight: bold;
}

Which looked like this...


So then I tried this:

Code:

.emby-tabs-slider::before {
    content: "Introducing: LiveTV. This is experimental.";
    display: block;
    position: relative;
    background-color: #a60011;
    color: #ffffff;
    text-align: center;
    padding: 10px 0;
    font-weight: bold;
}

Which gave me what I kinda wanted, but now the "Home" and "Favorites" tabs look dumb under it and messed up.