Adding Code to CSS Manager

I would like to add the following code into CSS Manager. My blog is http://www.therightcardandmore.com

<script>
  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');

  ga('create', 'UA-41988766-2', 'therightcardandmore.com');
  ga('send', 'pageview');

</script>

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The code doesn’t seem to work “as is”. What do I need to add to it to get it to work within CSS Manager? Thanks!!!