menu issue

When scroll down index page the logo+menu is not align in the middle?
There 2 lines i insert read from old issue…dont know if i did it right.

.header .header-inner .logo{float:left !important; margin: 20px 0px 0 0px !important;}
.header .header-inner .nav{margin: 0px 0px 0px 0px !important;}