title: Footer div not displaying properly
body: <p>I have 3 columns</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-css lang-css prettyprint-override"><code>.bookingTotals.middleRow {
    height: 315px;
    bottom: 400px;
  }
  
  .bookingTotals.row {
    height: 400px;
    bottom: 0;
    margin-left: 920px;
    /*margin-right: 55px;*/
  }</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;div id "myParent"&gt;
    &lt;div style="float: left; width: 400px;"&gt;
      //some stuff
      &lt;div&gt;
        &lt;div style="float: left; width: 400px;"&gt;
          //some stuff
          &lt;div&gt;
            &lt;div style="float: left; width: 400px;"&gt;
              &lt;div style="height:50px;"&gt;
                //top stuff
              &lt;/div&gt;
              &lt;div class="bookingTotals middleRow"&gt;
                //middle stiff that fills the gap
              &lt;/div&gt;
              &lt;div class="bookingTotals row"&gt;
                //bottom stuff that i want fixed to the bottom
              &lt;/div&gt;
            &lt;/div&gt;
          &lt;/div&gt;
        &lt;/div&gt;
      &lt;/div&gt;
    &lt;/div&gt;
  &lt;/div&gt;</code></pre>
  </div>
  </div>
  </p>
  
  <p>I want to split the last column into 3 layers where the top and bottom <code>div</code> heights are known. So I want the middle <code>div</code> to fill the space between.</p>
  
  <p>What actually happens is that this footer <code>div</code> is displayed outside <code>myParent</code> as if it had no relation to it. What am I doing wrong?</p>