title: Why can't I just apply a large amount of selectors to CSS script?
body: <p>I just began learning HTML/CSS a few day ago and I was wondering why a lot of my code that I have been writing recently isn't working properly.</p>
  <p>Why can't I simply use many selectors in order to apply all of my desired declarations?</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>header nav ul {
    list-style: none;
    text-decoration: none;
    color: black;
  }</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;header&gt;
    &lt;nav&gt;
      &lt;ul&gt;
        &lt;li&gt;&lt;a href="#"&gt;Home&lt;/a&gt;&lt;/li&gt;
        &lt;li&gt;&lt;a href="#"&gt;About&lt;/a&gt;&lt;/li&gt;
        &lt;li&gt;&lt;a href="#"&gt;Blog&lt;/a&gt;&lt;/li&gt;
        &lt;li&gt;&lt;a href="#"&gt;Contact&lt;/a&gt;&lt;/li&gt;
      &lt;/ul&gt;
    &lt;/nav&gt;
  &lt;/header&gt;</code></pre>
  </div>
  </div>
  </p>