+=</span> <span class="s1">&#39;&lt;link rel=&quot;stylesheet&quot; href=&quot;https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css&quot; integrity=&quot;sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u&quot; crossorigin=&quot;anonymous&quot;&gt;&#39;</span> 
  <span class="n">out</span> <span class="o">+=</span> <span class="s1">&#39;&lt;script src=&quot;https://cdn.plot.ly/plotly-latest.min.js&quot;&gt;&lt;/script&gt;&#39;</span>
  <span class="n">out</span> <span c