title: How to create the UP Arrow using only HTML and CSS?
body: <p>How to create the traiangle using only HTML and CSS?</p>
  
  <p>I need to create the thick triangle using only CSS</p>
  
  <p>I already tried this 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>.arrow-up {
    width: 0; 
    height: 0; 
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
  
    border-bottom: 5px solid black;
  }</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;span class="arrow-up"&gt;&lt;/span&gt;</code></pre>
  </div>
  </div>
  </p>