title: How to span a child div over two parent divs
body: <p><strong>Background:</strong>
  I'm building a grid using the Backbone.MarionetteJS framework. I am however running into a specific issue which I'm unsure on how to solve.</p>
  
  <p><strong>The code:</strong>
  My grid is build like the following:</p>
  
  <pre><code>&lt;section&gt;
      &lt;div&gt;
          &lt;div class="day"&gt;&lt;/div&gt;
      &lt;/div&gt;
      &lt;div&gt;&lt;/div&gt;
      &lt;div&gt;&lt;/div&gt;
      &lt;div&gt;&lt;/div&gt;
      &lt;div&gt;
          &lt;div class="day"&gt;
              &lt;div&gt;
                  &lt;div id="c38" class="gridItem droppable ui-droppable"&gt;
                      &lt;b&gt;
                          &lt;div id="c90" class="draggable orderItem stored ui-draggable" style="position: relative;"&gt;&lt;/div&gt;
                      &lt;/b&gt;
                  &lt;/div&gt;
              &lt;/div&gt;
              &lt;div&gt;
                  &lt;div id="c39" class="gridItem droppable ui-droppable"&gt;
                      &lt;b&gt;
                          &lt;div id="c91" class="draggable orderItem stored ui-draggable" style="position: relative;"&gt;&lt;/div&gt;
                          &lt;div id="c92" class="draggable orderItem stored ui-draggable" style="position: relative;"&gt;&lt;/div&gt;
                      &lt;/b&gt;
                  &lt;/div&gt;
              &lt;/div&gt;
          &lt;/div&gt;
      &lt;/div&gt;
  &lt;/section&gt;
  </code></pre>
  
  <p>As you can see each div within the section contains a div with a class day. Day is in this case a horizontal grid row. A day has 7 droppable gridFields  with each their own ID. Each gridfield for that day can contain multiple items such as field C39.</p>
  
  <p><strong>The problem:</strong> Although the above code works well, it could occour that I have an item (let's take c92) that's not only placed in gridfield c39 for that specific day, but also in grid field c38. Rather then displaying the grid item twice (once in each grid field) it would be much neater to have this item span over both div's so it looks like a singular item that can be dragged and dropped afterwards again.</p>
  
  <p>I have however no idea how to achieve this. Any advice is welcome.</p>