title: hiding/showing a table row breaks layout
body: <p>I'm trying to hide and show table rows, the following works but breaks the layout , ie the empty <code>&lt;td&gt;</code> s lose their width is there a way to prevent this?</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-js lang-js prettyprint-override"><code>$(document).on("click ", "tr.grey", function(e) {
    e.preventDefault();
    $( "tr.sales-details" ).removeClass( "show" );
    $(this).nextUntil(".grey").addClass( "show" );
  });</code></pre>
  <pre class="snippet-code-css lang-css prettyprint-override"><code>tbody tr.sales-details, tbody tr.sales-details-title{
    display: none;
    &amp;.show{
      display: block;
    }
  }</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"&gt;&lt;/script&gt;
  &lt;table width="100%" class="modal-table" id="modal-table"&gt;
    &lt;thead&gt;
      &lt;tr&gt;&lt;th&gt;Surgeon name&lt;/th&gt;
        &lt;th&gt;Country&lt;/th&gt;
        &lt;th&gt;Antiquity&lt;/th&gt;
        &lt;th&gt;Amount&lt;/th&gt;
      &lt;/tr&gt;
    &lt;/thead&gt;
    &lt;tbody&gt;
      &lt;tr class="grey"&gt;
        &lt;td&gt;Alex Lloyd&lt;/td&gt;
        &lt;td&gt;Spain&lt;/td&gt;
        &lt;td&gt;new client&lt;/td&gt;
        &lt;td&gt;2690.58 USD&lt;/td&gt;
      &lt;/tr&gt;
      &lt;tr class="sales-details-title"&gt;
        &lt;td&gt;&lt;/td&gt;
        &lt;td&gt;&lt;/td&gt;
        &lt;td&gt;&lt;strong&gt;Seller:&lt;/strong&gt;&lt;/td&gt;
        &lt;td&gt;&lt;strong&gt;Percentage:&lt;/strong&gt;&lt;/td&gt;
      &lt;/tr&gt;
      &lt;tr class="sales-details"&gt;
        &lt;td&gt;&lt;/td&gt;
        &lt;td&gt;&lt;/td&gt;
        &lt;td&gt;Support&lt;/td&gt;
        &lt;td&gt;2690.58 USD&lt;/td&gt;
      &lt;/tr&gt;
    &lt;/tbody&gt;
  &lt;/table&gt;</code></pre>
  </div>
  </div>
  </p>