title: How to override/change lay-out of Ruby on Rails spree app after installing Bootstrap gem?
body: <p>I have a Spree Commerce application with the spree_bootstrap gem installed by adding</p>
  
  <pre><code>gem 'spree_bootstrap', github: 'jdutil/spree_bootstrap'
  </code></pre>
  
  <p>to the Gemfile.</p>
  
  <p>Now on the main page I have all the familiar bootstrap divs as <code>&lt;div class="container row"&gt;</code> and <code>&lt;ul id="main-nav-bar" class="inline"&gt;</code>.</p>
  
  <p>I am new to Rails and I want to change the lay-out masterpage by adding my own custom navbar and other tweaks. Unfortunately application.html.rb is a virtually empty page and I don't think that is the one to make changes.</p>
  
  <p>My question is: how do I override or change the standard div values? I do not have the files locally. I've heard about using Deface as a tool, but I don't know how to use it.</p>
  
  <p>I hope someone here can provide some more insight on changing the standard bootstrap Spree application.</p>