title: how can i get rid of space above the header
body: <p>How can I get rid of the space between the top of the webpage and the header?<br>
  This is my code:</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 {
      margin: 0px;
      padding: 0px;
  }
          
  #Header {
      background-image: url(space.jpg);
      color: white;
      font-size: 40px;
      text-align: center;
      height: 70px;
      margin-top: 0px;
  }</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;div id="Header"&gt;
    &lt;p&gt; Weird Title &lt;/p&gt;
  &lt;/div&gt;
  
  &lt;a href ="practice.html"&gt; Click here &lt;/a&gt;</code></pre>
  </div>
  </div>
  </p>
  
  <p>I tried margin-top but that doesn't work is there something I am doing wrong.</p>