anchor.diff:          <span class="icon-bar"></span>
           <span class="icon-bar"></span>
         </button>
  -     <%=link_to image_tag("/images/logo1.png", :width=>45, :heigth=>45), "",class: "brand_img"%>
  +      <%=link_to image_tag("/images/logo1.png", :width=>45, :heigth=>45), "",class: "brand_img"%>
         <%=link_to("SISFA",root_path, class: "navbar-brand" )%>
       </div>
       <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
  
positive.code:             <a href="#" class="dropdown-toggle" data-toggle="dropdown">
              <i class="fa fa-file-text-o"></i>
                Proforma
                <b class="caret"></b>
              </a>
              <ul class="dropdown-menu">
                <li><%=link_to("Crear", :controller => 'proformas', :action => 'new')%></li>
                <li class="divider"></li>
                <li><%=link_to("Lista Proformas", :controller => 'proformas', :action => 'index')%></li>                
              </ul>
            </li>
          </ul>
  
negative.code:             <a href="#" class="dropdown-toggle" data-toggle="dropdown">
                <i class="fa fa-barcode"></i>
                  Productos
                  <b class="fa fa-angle-down"></b>
              </a>
              <ul class="dropdown-menu">
                <li><%=link_to("Inventario", :controller => 'productos', :action => 'index')%></li>
  