Include the following code in front of the end head tag of your template file.

apply-syntaxhighlighter-dynamic-brush1.html

<!-- Syntax Highlighter Additions START -->
<link href='http://alexgorbatchev.com/pub/sh/current/styles/shCore.css' rel='stylesheet' type='text/css'/>
<link href='http://alexgorbatchev.com/pub/sh/current/styles/shThemeDefault.css' rel='stylesheet' type='text/css'/>
<!-- Remove Vertical Scrollbar -->
<style type='text/css'>
  .syntaxhighlighter { 
     overflow-y: hidden !important; 
     overflow-x: auto !important; 
  }
</style>
<!-- Syntax Highlighter Additions END -->