title: find if background image is used for any html tag with inline style
body: <p>How do I find all the tags which have a background image ?
  No stylesheets used. All styling is inline in the tags.</p>
  
  <p>I'm using <strong>lxml</strong> and xpath, currently. This is how far I could get:</p>
  
  <pre><code>from lxml import html  
  html_text = """somehtml"""
  
  doc = html.fromstring(html_text)  
  tagWithBackgrounds = doc.xpath("//*[contains(@style,'background')]")
  </code></pre>
  
  <p>What next ? </p>