title: class row in style.php
body: <p>Im working on a article:
  I want 3 in one row. I know how to do it with stype, but i dont know how to do it with style.php.</p>
  
  <p><a href="https://i.stack.imgur.com/dYcpx.png" rel="nofollow noreferrer">enter image description here</a></p>
  
  <p>This is only the part of code but I need to properly implement grid:</p>
  
  <pre><code>echo '&lt;div class="container"&gt;';
      echo '&lt;div class="row padding"&gt;';
          echo '&lt;div class="col-md-4 col-sm-12"&gt;';
              echo '&lt;div class="card"&gt;';
                  echo '&lt;img src="' . UPLPATH . $row['slika'] . '"';
                      echo '&lt;div class="card-body"&gt;';
                          echo '&lt;h6 class="card-title"&gt;';
                              echo '&amp;laquo;';
                                   echo $row['naslov'];
  </code></pre>
  
  <p>//style.php</p>
  
  <pre><code>&lt;?php 
      header('content-type:text/css');
      $grid='grid';
  ?&gt;
  
  .container { 
      display:  &lt;?=$grid?&gt;;
  }
  </code></pre>