Hide Navbar on New Timplate Blogger

1.  
2. log in to Blogger.com
3. edit HTML
4. don't Expand Template Widget 
5. find text  "Blogger Template Style" with ctrl+f
6. add the code #navbar-iframe {display: none !important;} like this  :
   

Blogger Template Style
Name:     Ethereal
Designer: Jason Morrow
URL:      jasonmorrow.etsy.com
----------------------------------------------- */
#navbar-iframe {display: none !important;}
/* Variable definitions
   ====================
  

6. Preview before save
7.  Save and done