[css3-selectors] Descendant class selectors

Is it the intention of CSS3 to define descendant class selectors, such as
*.insert *.example {...}?

For example:

body      { background-color: white;
            color:            black;
          }

*.example { color:            blue;
          }

*.insert  { background-color: blue;
            color:            white;
          }

*.insert *.example
          { background-color: blue;
            color:            aqua;
          }

<p>This text would be black, against a white background.</p>

<p class="example">This text would be blue, against a white background.</p>

<div class="insert">This text would be white, against a blue background.
   <p class="example">This text would be aqua, against a blue
background.</p>
</div>

Barry