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完整代码https://github.com/tenzan/shop/tree/bootstrap

application.html.erb：（参考：https ://v4-alpha.getbootstrap.com/components/navbar/#nav ）

<!DOCTYPE html>
<html>
  <head>
    <title>Shop</title>
    <%= csrf_meta_tags %>

    <meta name="viewport" content="width=device-width, initial-scale=1">
    <%= stylesheet_link_tag    'application', media: 'all', 'data-turbolinks-track': 'reload' %>
    <%= javascript_include_tag 'application', 'data-turbolinks-track': 'reload' %>
  </head>

  <body>

    <nav class="navbar navbar-toggleable-md navbar-light bg-faded">
      <button class="navbar-toggler navbar-toggler-right" type="button" data-toggle="collapse" data-target="#navbarNavAltMarkup" aria-controls="navbarNavAltMarkup" aria-expanded="false" aria-label="Toggle navigation">
        <span class="navbar-toggler-icon"></span>
      </button>
      <a class="navbar-brand" href="#">Navbar</a>
      <div class="collapse navbar-collapse" id="navbarNavAltMarkup">
        <div class="navbar-nav">
          <a class="nav-item nav-link active" href="#">Home <span class="sr-only">(current)</span></a>
          <a class="nav-item nav-link" href="#">Features</a>
          <a class="nav-item nav-link" href="#">Pricing</a>
          <a class="nav-item nav-link disabled" href="#">Disabled</a>
        </div>
      </div>
    </nav>

    <div class="container">
    <% flash.each do |key, message| %>
    <div class="alert alert-<%= key %>">
       <div><%= message %></div>
     </div>
    <% end %>
    <%= yield %>
    </div
  </body>
</html>

当我从桌面看到它显示为在此处输入图像描述

代替在此处输入图像描述

4

0 回答 0