Simples alert bootstrap

alert.html.erb

      <% if flash[:notice].present? %>
          <div class="alert alert-success" role="alert">
            <a class="close" data-dismiss="alert">×</a>
            <%= flash[:notice] %>
          </div>
        <% end %>

        <% if flash[:alert].present? %>
          <div class="alert alert-error" role="alert">
            <a class="close" data-dismiss="alert">×</a>
            <%= flash[:alert] %>
          </div>
        <% end %>

        <% if flash[:info].present? %>
          <div class="alert alert-info" role="alert">
            <a class="close" data-dismiss="alert">×</a>
            <%= flash[:info] %>
          </div>
        <% end %>