n><section class="applicability"><h2>When to Use</h2>
      <p>CSS used with HTML and XHTML</p>
   </section><section class="description"><h2>Description</h2>
      <p>The objective of this technique is to ensure that the order of content in the source code is the same as the visual presentation of the content. The order of content in the source code can be changed by the author to any number of visual presentations with CSS. Each order may be meaningful in itself but may cause confusion for assistive techn