<%= form_for @conn, "/sign_in", [as: :session], fn f -> %>
<%= label f, :email, class: "control-label" %>
<%= text_input f, :email, class: "form-control" %>
<%= error_tag f, :email %>
<%= label f, :password, class: "control-label" %>
<%= password_input f, :password, class: "form-control" %>
<%= error_tag f, :password %>
<%= submit "Sign In", class: "btn btn-primary" %>
<% end %>