Auto hide blogger navbar

removing navbar blogspot from your blog is harm. Why??
Because you will be banned if they were know you did it. At least give them the 'Powered by blogspot' image link that you can found by add page element in blogger page elements.

First found body { then add this script before it..

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

Done..

That will make your blogger navbar in auto hide mode.