<div class="c1">
      <li class="c2"><a href="">blah</a></li>
</div>

div.c1 li.c2 a {
  color: red;
}

<style>
  div.c1 li.c2 a { color: red; }
</style>

<div class="c1">
      <li class="c2"><a href="">blah</a></li>
</div>
<style>
  div.c1 li.c2 a { color: red; }
</style>

div.c1 > li.c2 > a:link,
div.c1 > li.c2 > a:active,
div.c1 > li.c2 > a:hover,
div.c1 > li.c2 > a:visited {
    color: red;
}

div.c1 li.c2 a {
    color: red;
}

.c1 .c2 a {
  color: red;
}

.c2 a
{
     color: red;
}

.c1 .c2 a { color: red; }

.c2 a { color:red }