Bootstrap 3 will put a page into it's modal. Here is a way to add a section of the page to the modal using jQuery's .load().

Load section of html page into Bootstrap 3 modal

<!-- link -->
<a href="/article.html" class="triggerModal" >

<!-- modal -->
<div id="modal" class="modal fade modal-dialog" tabindex="-1" role="dialog" aria-labelledby="yourMom" aria-hidden="true">
    <div class="container">
        <button type="button" class="close" data-dismiss="modal" aria-hidden="true"></button>
        <div class="row">
            <div id="response_modal"></div>
        </div>
    </div>
</div>

<!-- script -->
<script>
    $('.triggerModal').click(function(e) {
        var responseUrl = $(this).attr('href'); // make the variable the url of the a tag 
        
        $('#response_modal').load(responseUrl + ' #idOfTheDivYouWantToLoad'); // dump the target page's id contents into the modal
        $('#modal').modal(); // open the bootstrap modal
    
        return false; // don't go to the url of the a tag
    });
</script>