Оно?
<style type = "text/css">
.colored {
color:red;
}
</style>
<body>
<ul>
<li><a class = "colored" href = "#">Link 1</a></li>
<li><a href = "#">Link 2</a></li>
<li><a href = "#">Link 3</a></li>
<li><a href = "#">Link 4</a></li>
<li><a class = "colored" href = "#">Link 5</a></li>
<li><a href = "#">Link 6</a></li>
</ul>
</body>