title: How to select a column of table when I click on "choose me"?
body: <p>Here is a table example from my project. How can I select the whole table column when I click on &quot;choose me&quot;?</p>
  <pre><code>&lt;table&gt;
    &lt;tr&gt;
      &lt;th&gt;plan 1&lt;/th&gt;
      &lt;th&gt;plan 2&lt;/th&gt;
      &lt;th&gt;plan 3&lt;/th&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
      &lt;td&gt;plan 1 detail&lt;/td&gt;
      &lt;td&gt;plan 2 detail&lt;/td&gt;
      &lt;td&gt;plan 3 detail&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
      &lt;td&gt;plan 1 detail&lt;/td&gt;
      &lt;td&gt;plan 2 detail&lt;/td&gt;
      &lt;td&gt;plan 3 detail&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
      &lt;td&gt;choose me!&lt;/td&gt;
      &lt;td&gt;choose me!&lt;/td&gt;
      &lt;td&gt;choose me!&lt;/td&gt;
    &lt;/tr&gt;
  &lt;/table&gt;
  </code></pre>
  <p>If I click on &quot;choose me&quot;, I want to get style of column design to be changed.</p>
  <p>Please help.</p>