title: Bootstrap-vue doesn't load CSS
body: <p>I am writing a Vue.js app with Bootstrap 4 and I can't loaded though I followed the documentation.</p>
  
  <p>Added to main.js</p>
  
  <p><code>Vue.use(BootstrapVue);</code></p>
  
  <p>Added to css file related to App.vue:</p>
  
  <pre><code>@import '../../node_modules/bootstrap/dist/css/bootstrap.css';
  @import '../../node_modules/bootstrap-vue/dist/bootstrap-vue.css';
  </code></pre>
  
  <p>Here is template:</p>
  
  <pre><code>&lt;div class="main"&gt;
  &lt;div&gt;
  
      &lt;b-modal id="modal1" title="Something went wrong" v-if="!serverStatusOk"&gt;
          &lt;p class="my-4"&gt;{{msg}}&lt;/p&gt;
          &lt;p class="my-4"&gt;{{statusCode}}&lt;/p&gt;
  
      &lt;/b-modal&gt;
  &lt;/div&gt;
  
  &lt;div&gt;
      &lt;b-tab title="Players" active&gt;
          &lt;br&gt;Players data
      &lt;/b-tab&gt;
      &lt;b-tab title="Tournaments" active&gt;
          &lt;br&gt;Tournament data
      &lt;/b-tab&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p></p>
  
  <p>Result: no css rendered but in css file from dist dir I see Bootstrap
  What am I missing? The project created by vue-cli 3.0-beta</p>