If you want to disable the any li element, we have disabled class. Also we can make page active with active class
Example :
<ul class="pagination">
<li class="disabled">
<a href="#">«</a></li>
<li class="active"><a href="#">1</a></li>
<li><a href="#">2</a></li>
<li><a href="#">3</a></li>
<li><a href="#">4</a></li>
<li><a href="#">5</a></li>
<li><a href="#">6</a></li>
<li><a href="#">»</a>
</li>
</ul>