title: HtmlUnit Doesn't Recognize Valid CSS
body: <p>So, I just started using HtmlUnit (literally just now), and I've already run into an error. I have some simple code:</p>
  
  <pre><code>fun getPage() { val page: Page = WebClient().getPage("http://htmlunit.sourceforge.net") }
  </code></pre>
  
  <p>However, it throws an extremely long error:</p>
  
  <pre><code>WARNING: CSS error: 'http://htmlunit.sourceforge.net/css/apache-maven-fluido-1.5.min.css' [9:90176] Error in declaration. '*' is not allowed as first char of a property.
  Jan 24, 2018 4:14:58 PM com.gargoylesoftware.htmlunit.DefaultCssErrorHandler error
  WARNING: CSS error: 'http://htmlunit.sourceforge.net/css/apache-maven-fluido-1.5.min.css' [9:91151] Error in declaration. '*' is not allowed as first char of a property.
  Jan 24, 2018 4:14:59 PM com.gargoylesoftware.htmlunit.IncorrectnessListenerImpl notify
  WARNING: Obsolete content type encountered: 'text/javascript'.
  Jan 24, 2018 4:15:00 PM com.gargoylesoftware.htmlunit.javascript.StrictErrorReporter runtimeError
  //continues the above sequence a lot, and then ends with:
  
  SEVERE: runtimeError: message=[An invalid or illegal selector was specified (selector: '*,:x' error: Invalid selector: :x).] sourceName=[http://htmlunit.sourceforge.net/js/apache-maven-fluido-1.5.min.js] line=[25] lineSource=[null] lineOffset=[0]
  </code></pre>
  
  <p>I looked at the <a href="http://htmlunit.sourceforge.net/css/apache-maven-fluido-1.5.min.css" rel="nofollow noreferrer">link provided by the error</a>, and it seems to contain a lot of asterisks inside of their CSS. 194, to be exact (including asterisks used in the commented area). I also experimented with loading other web pages, and it appears to be that it has issues understanding that the CSS of web-pages is valid.</p>
  
  <p>Am I doing something wrong, or should I just tell it to ignore CSS? (I'm not sure if that's possible, but I would prefer it.)</p>