anchor.diff:  					<div class="input-group">
   						<input type="text" id="match_pattern" class="form-control" tabindex="2" />
   						<span class="input-group-btn">
  -							<button class="btn btn-default" id="copy_match_pattern" data-clipboard-target="match_pattern">Copy</button>
  +							<span class="btn btn-default" id="copy_match_pattern" data-clipboard-target="match_pattern">
  +								<i class="fa fa-clipboard"></i>
  +							</span>
   						</span>
   					</div>
   				</div>
  
positive.code: 					<div class="input-group">
  						<input type="text" id="replace_pattern" class="form-control" tabindex="3" />
  						<span class="input-group-btn">
  							<button class="btn btn-default" id="copy_replace_pattern" data-clipboard-target="replace_pattern">Copy</button>
  						</span>
  					</div>
  				</div>
  
negative.code: 	rel='stylesheet' type='text/css'>
  <link href='http://fonts.googleapis.com/css?family=Inconsolata' rel='stylesheet' type='text/css'>
  <link href="//netdna.bootstrapcdn.com/bootstrap/3.1.0/css/bootstrap.min.css" rel="stylesheet">
  <link href="//netdna.bootstrapcdn.com/font-awesome/4.0.3/css/font-awesome.min.css" rel="stylesheet" />
  <style type="text/css">
  * {
  	font-family: 'Gudea', sans-serif;
  