anchor.diff:  					span.icon-bar
   				a.navbar-brand(href='#')= name
   			.collapse.navbar-collapse( id=id )
  -				ul.nav.navbar-nav
  -					block
  +				    block
   
   mixin navbar-static(name,id,style)
   	- var style = (typeof style === 'undefined') ? "default" : style
  
positive.code: 					span.icon-bar
  				a.navbar-brand(href='#')= name
  			.collapse.navbar-collapse( id=id )
  				ul.nav.navbar-nav
  					block
  //- End navbar mixins
  
negative.code: 			a.navbar-brand(href=href)= name
  
  		.collapse.navbar-collapse( id=id )
  			block
  
  mixin nav_item(href, active)
  	li(class=active): a( href=href )
  