title: How to make table columns' height and width equal
body: <p>This is the code. I tried to it with colgroup </p>
  
  <pre><code>&lt;col style="width: 100px; height:100px;"&gt;
  </code></pre>
  
  <p>but didn't work. This is the <a href="https://jsfiddle.net/ouur4g75/" rel="nofollow">demo</a> of the table I want every column to be <code>100px</code> high and <code>100px</code> wide</p>