title: Margin-top/Margin-bottom not working
body: <p>I'm working on a bigger web project and the following snippets are just extracts of two larger html/css documents. </p>
  
  <p>But the problem remains:
  I'm not able to insert  <code>margin-top/bottom</code> for my textboxes.</p>
  
  <p>I want to achieve 2 things:</p>
  
  <ul>
  <li>Adding more rows with text boxes if needed - with a defined space between these rows.</li>
  <li>Use the same defined space after an auto break of a single row. This snippet is embedded many auto generated pages. So I don't know how many of these white boxes will be displayed. I want to achieve a fancier behavior after resizing the browser window too.</li>
  </ul>
  
  <p><strong>HTML/CSS - Minimal (not) working example:</strong></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-css lang-css prettyprint-override"><code>body {
    font-family: Gill Sans, Gill Sans MT, Calibri, sans-serif;
    background-color: #f0f0f0;
  }
  span.bigger {
    font-size: 1.5em;
    margin-right: 15px;
    /*not working*/
    margin-top: 225px;
    margin-bottom: 225px;
    background-color: white;
    padding: 5px;
  }</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;div id="content"&gt;
    &lt;span class="bigger"&gt;Text-Text-Text&lt;/span&gt;
    &lt;span class="bigger"&gt;Text-Text-Text&lt;/span&gt;
    &lt;span class="bigger"&gt;Text-Text-Text&lt;/span&gt;
    &lt;span class="bigger"&gt;Text-Text-Text&lt;/span&gt;
    &lt;span class="bigger"&gt;Text-Text-Text&lt;/span&gt;
    &lt;span class="bigger"&gt;Text-Text-Text&lt;/span&gt;
    &lt;span class="bigger"&gt;Text-Text-Text&lt;/span&gt;
    &lt;span class="bigger"&gt;Text-Text-Text&lt;/span&gt;
    &lt;span class="bigger"&gt;Text-Text-Text&lt;/span&gt;
    &lt;span class="bigger"&gt;Text-Text-Text&lt;/span&gt;
    &lt;span class="bigger"&gt;Text-Text-Text&lt;/span&gt;
    &lt;span class="bigger"&gt;Text-Text-Text&lt;/span&gt;
  &lt;/div&gt;
  No margin</code></pre>
  </div>
  </div>
  </p>
  
  <hr>
  
  <p><strong>What I want to achieve:</strong>
  <a href="https://i.stack.imgur.com/WMPel.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/WMPel.png" alt="enter image description here"></a></p>