title: How to make div stick to the bottom of parent div?
body: <p>Could anyone please help me making <code>div#bottom</code> stick to the bottom of the parent <code>div</code>, so when I click on the button inside it will allow me to show elements from <code>div#list</code> above itself?</p>
  
  <p>Preferably I would want to avoid JS, jQuery, etc. or at least in the layout:</p>
  
  <pre><code>&lt;div class="wrapper"&gt;
     &lt;div id="top"&gt;
       &lt;ul&gt;
        ...
        ...
       &lt;/ul&gt;
     &lt;/div&gt;
     &lt;div class="bottom"&gt;
        &lt;div id="button"&gt;
           &lt;div id="list"&gt;
              &lt;ul&gt;
                 &lt;li&gt;elem 1&lt;/li&gt;
                 &lt;li&gt;elem 2&lt;/li&gt;
              &lt;/ul&gt;
           &lt;/div&gt;
        &lt;/div&gt;
     &lt;/div&gt;
  &lt;/div&gt;
  </code></pre>