title: Wrapping css class to Hashtag(#) content & At(@) content
body: <p>I am looking for a jQuery way to find all hashtag(#) and at(@) with the content followed by. And finally wrap them with a css class.</p>
  
  <p>The class wrapping start with "#" or "@" and end before any white-sapce like below. There will multiple # and @ in the sentence. </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>*{
  font-family: sans-serif;
  }
  
  .at{
  background-color: #ffcccb;
  color: #bf2025;
  padding: 1px 3px;
  border-radius: 3px
  }
  
  .hash{
  background-color: #9bedff;
  color: #26477e;
  padding: 1px 3px;
  border-radius: 3px
  }</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>original content:
  &lt;ul&gt;
  &lt;li&gt;Phone call @Mary #group-project&lt;/li&gt;
  &lt;li&gt;Buy food and drinks #BBQ&lt;/li&gt;
  &lt;li&gt;Discard old computer #home #computer&lt;/li&gt;
  &lt;/ul&gt;
  
  ultimate goal:
  &lt;ul&gt;
  &lt;li&gt;Phone call &lt;span class="at"&gt;@Mary&lt;/span&gt; &lt;span class="hash"&gt;#group-project&lt;/span&gt;&lt;/li&gt;
  &lt;li&gt;Buy food and drinks &lt;span class="hash"&gt;#BBQ&lt;/span&gt;&lt;/li&gt;
  &lt;li&gt;Discard old computer &lt;span class="hash"&gt;#home&lt;/span&gt; &lt;span class="hash"&gt;#computer&lt;/span&gt;&lt;/li&gt;
  &lt;/ul&gt;</code></pre>
  </div>
  </div>
  </p>