title: BEM. Can Elements contain Blocks?
body: <h3>Here is my HTML</h3>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;ul class="menu"&gt;
    &lt;li class="menu__item"&gt;
      &lt;a href="" class="menu__link"&gt;&lt;/a&gt;
    &lt;/li&gt;
    &lt;li class="menu__item"&gt;
      &lt;ul class="list"&gt; // can I place this block inside here?
        &lt;li class="list__item"&gt;
          ...
        &lt;/li&gt;
        &lt;li class="list__item"&gt;
          ...
        &lt;/li&gt;
      &lt;/ul&gt;
    &lt;/li&gt;
  &lt;/ul&gt;</code></pre>
  </div>
  </div>
  </p>
  
  <p>In this case, I place the block <code>list</code> inside the element <code>menu__item</code>.</p>
  
  <p>I wonder, is this legal?</p>