How to Hide Navbar

Pro-Contra issue that is often called the Navigation Bar NavBar Blog Template based on Google's important whether or not the [omitted or left] it all back to their respective Blogger 

but for me personally it should not be eliminated because until recently Template Design Google is still and always contains the NavBar 
On this occasion I will share with friends how to make it NavBar alias Auto Hide Hidden [without having to remove] because many facilities that are inside,
The trick is very simple at all:

1. Sign in to Blogger with your ID
2. On select Edit HTML Template Designers
3. Search - body {   
4. Copy and paste the following code above it, 

#navbar-iframe{opacity:0.0;filter:alpha(Opacity=0)}#navbar-iframe:hover{opacity:1.0;filter:alpha(Opacity=100, FinishedOpacity=100)}

Save the template friends and see the results