title: Variable number of columns in an HTML table
body: <p><img src="https://i.imgur.com/xPwpF.png" alt="example" /></p>
  <p>The highlighted area is two columns that I would like to collapse into one.</p>
  <pre class="lang-html prettyprint-override"><code>&lt;TABLE border=&quot;1&quot; cellspacing=&quot;0&quot; width=&quot;450px&quot; cellpadding=&quot;3px&quot; bordercolor=&quot;#FFFFFF&quot;&gt;
          &lt;TR&gt;
                  &lt;TD rowspan=&quot;2&quot; width=&quot;50px&quot; height=&quot;50px&quot; background=&quot;img/noimg75.png&quot;&gt;&lt;/TD&gt;
                  &lt;TD width=&quot;200px&quot;&gt;1&lt;/TD&gt;
                  &lt;TD width=&quot;200px&quot;&gt;2&lt;/TD&gt;
          &lt;/TR&gt;
          &lt;TR&gt;
                  &lt;TD&gt;3&lt;/TD&gt;
                  &lt;TD&gt;4&lt;/TD&gt;
          &lt;/TR&gt;
          &lt;TR&gt;
                  &lt;TD&gt;5&lt;/TD&gt;
                  &lt;TD&gt;6&lt;/TD&gt;
                  &lt;TD&gt;7&lt;/TD&gt;
          &lt;/TR&gt;
  &lt;/TABLE&gt;
  </code></pre>