title: Expand button to cover full cell with colspan and rowspan
body: <p>I need to insert a button inside a cell in a table. This button should fit entirely the cell.</p>
  
  <pre><code>&lt;td colspan="2" rowspan="2"&gt;
     &lt;button class="btn btn-default btn-block m-0" style="height:100%;"&gt;
         Button
     &lt;/button&gt;
  &lt;/td&gt;
  </code></pre>
  
  <p>I tried the above code but the actual button it covers only the first row of the joined cells.</p>