title: Align div to the right side
body: <p>Hi I have the below HTML, Inside the Container I have Header, section and div.
  With my current CSS below the div with class rightSideDiv does not show to right to the section element.</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>.container {
    height: 500px;
    widht: 500px;
    background-color: red;
  }
  
  .headerTitle {
    display: inline-block;
    height: 24px;
    margin: 24px 24px 0;
    padding: 0;
    line-height: 24px;
  }
  
  .sectionClass {
    width:249px;
    height:200px;
      background-color: yellow;
  
  }
  
  .rightSideDiv {
      width:249px;
    height:200px;
    border: 4px solid green;
  
  }</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;aside&gt;
    &lt;div class="container"&gt; 
      &lt;header class="headerTitle"&gt; Header Title  &lt;/header&gt; 
      &lt;section class="sectionClass"&gt; .  &lt;/section&gt;
      &lt;div class="rightSideDiv"&gt; &lt;/div&gt;
    &lt;/div&gt;
    &lt;/aside&gt;</code></pre>
  </div>
  </div>
  </p>
  
  <p>The section and div should be shown side by side. I dont want to modify the current HTML structure.  I have tried specifying float:left or right but both doesn't seem to work.</p>