app/views/shared/_welcome_side_bar.html.haml
%div.menu
%div.icon-close
=image_tag "http://s3.amazonaws.com/codecademy-content/courses/ltp2/img/uber/close.png", class: "icon-close"
%ul
%li= link_to "About", ""
%li= link_to "Sign up", root_path(:proceed => "register")
%li= link_to "Sign in", root_path(:proceed => "login")