anchor.diff:  <div class="row">
     <div class="col-md-6 lead">
       <p>When using a table with two layers of headings, usually for interacting with table content, <code>table-header</code> and <code>table-header-secondary</code> classes are used.</p>
  -    
  +
       <p>The second example shows a table with selectable rows. Selected rows highlight in yellow. The checkbox in the header selects all rows.</p>
     </div>
     <ul class="col-md-6">
  
positive.code:         </h1>
        </div>
        <p class="subtitle">UKSA is an executive agency of <a href="#">BIS</a></p>
        
        <div class="page-title with-border">
          <h1>
            <span class="small">www.ukspaceagency.com</span>
  
negative.code:         </h1>
        </div>
        <p class="subtitle">UKSA is an executive agency of <a href="#">BIS</a></p>
  
      </header>
    </section>
  </div>
  