Remove/Hide "Navbar" on Blogger

Navbar is "original standard feature on blogger. Most of people considered that navbar looks disturbing the blogs' display.

Here, Tips to remove/hide navbar on blogger:

1. Login to blogger, enter settings-layout.
2. Edit layout navbar and choose "off" in navbar setting.
3. Save and see the result. (Maybe it remains space between the top of blog display and header).
4. Click template, edit HTML, find this code ]]></b:skin> by pressing ctrl+F.
5. Put the following code below "exactly" on ]]></b:skin> 
#navbar, #navbar-iframe {
   height: 0px;
   visibility: hidden;
   display: none;

6. Save and Preview.

7. You'll see there's no more navbar on your blog display.