Many of my friends have asked me "How to hide the blogger navbar" .So i am gonna explain it

Actually What is Blogger NavBar...?

The Blogger Navbar is a navigation and search bar on top of all blogspot blogs. It is available in several colors, and is configured in the Template tab in Blogger’s interface. You can get more information  about Navbar from Blogger here

Show/Hide blogger navbar

Step 1. Log in to blogger account

Step 2. On your Dashboard, select Layout. This will take you to the Template tab. Click Edit HTML. Under the Edit Template section you will see you blog’s HTML.

Step 3. Delete the code below to show the Navbar

#navbar, #navbar-iframe {

height: 0px;

visibility: hidden;
display: none;
}

or Add that code to your css code to hide the Navbar.

That is all.