If you are using blogger blog , you will notice a navigation bar 
at top of your blog,this was set by blogger default template ,
 I hate this navigation bar because i have some reason
one of them it’s make blog look less professional  
 To Remove navigation bar follow these steps 

  • Log in you account
  •  Now Click on the arrow

  • Now Click the template 

  •  Now Click on the Edit HTML

  • Now Find   “Variable definitions” to find it press CTR+F
  • Copy the below code and past before  “Variable definitions” 

         it as show in the image below 

    #navbar-iframe { height:0px; visibility:hidden; display:none }

             Now save the Template