Youdaman

Ever want to make an element stick to a page? Well now you can! 
Just install this WordPress plugin and your wish will be granted!

Sticky Element

Dannie Herdyawan

Showing information or notes on top bar
Simply the easiest way to add a topbar to your website. This plugin adds a simple and clean notification bar at the top of your website, allowing you to display a nice message to your visitors as well as a custom link.
<a href="http://plugin.ciusan.com/239/ciusan-notification-bar/" rel="nofollow ugc">Ciusan Notification Bar</a>

Sticky Element vs Ciusan Notification Bar