title: select element in jsoup with attributes empty value
body: <p>Here is my code. I want to retrieve elements whose attribute style is empty value.</p>
  
  <pre><code>String html = "&lt;div style=''&gt;dsfsdfs&lt;/div&gt;";
  
  Document doc = Jsoup.parse(html);
  
  Elements elements = doc.select("*[style='']"); 
  
  System.out.println(elements.size());
  </code></pre>
  
  <p>But at the output i didn't get the size of elements whose style attribute is empty.</p>