If you see a scrolling strip of text just below the main navigation, that's our announcement bar — used for short, time-limited updates from us (maintenance windows, new features, that kind of thing).
Hover over it to pause the scroll and read at your own pace. If you'd rather not see it, click the ✕ on the right to dismiss it — it'll stay hidden for the rest of your current browser session, and reappear (if it's still active) the next time you visit.