1. Log in to blogger account and Click drop down.
2. Now select "Template" Like Below.
3. Now you can see Live on blog, Click EDIT HTML Button"
4. Now click Proceed button.
5. Find this tag by using Ctrl+F ]]></b:skin>
6. Paste below code Before ]]></b:skin> tag
CSS CODE
.nhm_topnavigation
{
background: url("https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEinPILa2Ni4bkOhLsFRV4ik2fJl8I8ktO4hyEmxEebqVfZDU4UY7o6zczQTV2-CGRQhi7IF7_78lVXlThOvniOWn_ZbZ992d5aizxKqWOijY9P5JiLBmFjY-TyoSA41oIuJO0wuv26rn7c/s1600/top-nav-bg.gif")...
