title: CSS Fixed position with Auto Margin
body: <p>I want a component that keeps horizontal center of the page (two-columns), and I have a sub-component (right column) that I want its position to be fixed, so the sub-component's position to be fixed, but the whole two columns to be centered.</p>
  
  <pre><code>#content {
      width: 1200px;
      height:auto !important;
      height:100%;
      min-height:100%;
      padding-top: 42px;
      padding-bottom: 100px;
      margin-auto: 0 auto;
      position: relative;
  }
  
  #left {
      width: 700px;
      float: left;
  }
  
  #right {
          width: 500px;
          position: fixed;
          top: 0px;
  }
  </code></pre>