title: Background image is not working in my stylesheet
body: <p>I tried to implement a mobile menu loading URL image in CSS. But the image is not showing. I inspected it using the browser dev tool, also it's not loading. Check the full code below.
  I tried background: url(/source/close.png); and  background-image: url(/source/close.png);
  but no any result. I need to fix this.</p>
  <pre><code>.toggle.active {
      background-image: url(/source/close.png);
      background-size: 30px;
      background-position: center;
      background-repeat: no-repeat;
  }
  </code></pre>