title: Jquery: Can't fade in <span> element
body: <p>I have have a span element that I want to let fade in from display none.
  Fading out works perfectly fine but Fading in just doesnt work,</p>
  
  <p>Here is the css of the span element:</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-js lang-js prettyprint-override"><code>$(".button_5").hover(function () {
          $(".box5 span.info").fadeIn();
      });
  
  //The fade out just works fine:
  
      $(".button_5").hover(function () {
          $(".box5 span.info").fadeOut();
      });</code></pre>
  <pre class="snippet-code-css lang-css prettyprint-override"><code>.box5 span.info:before{
          content:"15 vacatures";
          margin:0;
          padding:0 0 28px 0;
          display:0;
      }</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"&gt;&lt;/script&gt;
  &lt;div class="col1"&gt;
          &lt;div class="button_5"&gt;
              &lt;div class="box5"&gt;
                  &lt;br&gt;&lt;br&gt;
                  &lt;span class="title"&gt;&lt;/span&gt;&lt;br/&gt;
                  &lt;span class="info"&gt;&lt;/span&gt;
              &lt;/div&gt;
          &lt;/div&gt; 
      &lt;/div&gt;</code></pre>
  </div>
  </div>
  </p>