How to disable narbar?

Here is NarBar:

disable narbar is very easy to done it. just follow my step below:
Step 1: sign in your blog
Step 2: click template
Step 3: click "Edit HTML"
Step 4: click "Process"
Step 5: check "Expand Widget Templates"
Step 6: find "Variable definitions" and paste code below above it.

#navbar-iframe {   display: none !important;}

view your blog...