var _html_data = `<section>
              <h1 style="color: #5e9ca0;">
                You can edit
                <span style="color: #2b2301;">this demo</span> text!
              </h1>
              <h2 style="color: #2e6c80;">How to use the editor:</h2>
              <p>
                Paste your documents in the visual editor on the left or your HTML code in the source editor in the right.
                <br>Edit any of the two areas and see the other changing in real time.&nbsp;
              </p>
            </section>`;