When the form is submitted, the page content gets replaced and a Thank you msg shows up. It now goes in a <div>, but set to its left.

Here's the resulting html part:

<div class="row">
  <div style="color:#373737;text-align:center">
    <h5>Thank you!</h5>
    <p>
       We will be processing your response!
    </p>
  </div>
</div>

This is the javascript piece:

function saveData() {
  var searchForm = document.getElementById('search-form')
  var page = document.getElementById("page");
  var table = document.getElementById("dtable");

  page.innerHTML = "";
  table.innerHTML = "";
  searchForm.closest("div.row").innerHTML = "<div style='color:#373737;text-align:center'><h5>Thank you!</h5>" + 
"<p>We will be processing your response!</p>"+
"</div"
}

Thank you for your help!

Here is an attempt: