superhighway/index.html

## index.html
<!DOCTYPE html>
<html>

  <head>
    <script type="text/javascript" src="http://cdnjs.cloudflare.com/ajax/libs/prefixfree/1.0.7/prefixfree.min.js"></script>
    <link rel="stylesheet" href="main.css" />
  </head>

  <body>

    <div id='snippet-runner'>

      <div id='snippet-runner-code-content' class='snippet-runner-code-content'>puts "Halo Ruby!"</div>
      <div class='snippet-runner-code-actions'>
        <a href='javascript:void(0);' class='snippet-runner-code-action snippet-runner-code-action-run'>Jalankan</a>
      </div>
      <div class='snippet-runner-output-container'>
        <h3>Output</h3>
        <pre class='snippet-runner-output'></pre>
      </div>

    </div>

    <script src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
    <script src="http://d1n0x3qji82z53.cloudfront.net/src-min-noconflict/ace.js" type="text/javascript" charset="utf-8"></script>
    <script src="./main.js" type="text/javascript"></script>
  </body>

</html>

## main.css
* { margin: 0; padding: 0; }

a { color: #4183C4; text-decoration: none; }

#snippet-runner {
  font-family: Helvetica, Arial, sans-serif;
  text-align: center;
  position: fixed;
  margin: 0;
  top: 0;
  right: 0;
  left: 0;
  bottom: 0;
  background-color: #eee;
  background-image: linear-gradient(top, #eee, #ddd, #888);
  padding: 0 2%;
  overflow: auto;
}

#snippet-runner-code-content {
  text-shadow: 0 0 0 #fff;
  margin: 0;
  text-align: left;
  max-width: 650px;
  position: absolute;
  left: 0;
  bottom: 50px;
  right: 20%;
  top: 0;
  overflow: auto;
}

.snippet-runner-code-actions {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 20%;
  max-width: 650px;
  margin: 0;
}

.snippet-runner-output-container {
  position: absolute;
  margin: 0;
  padding: 10px;
  text-align: left;
  left: 80%;
  top: 0;
}

@media only screen and (min-width: 813px) {
  .snippet-runner-output-container {
    left: 650px;
  }
}

.snippet-runner-code-action-run {
  display: block;
  padding: 15px;
  background-image: linear-gradient(top, #ccc, #bbb, #aaa);
  border: #777 1px solid;
  font-weight: bold;
  text-shadow: 0 1px 0 #fff;
}

.snippet-runner-code-action-run:active {
  background-image: linear-gradient(bottom, #ccc, #bbb, #aaa);
  box-shadow: inset 0 0 8px #888;
}

.snippet-runner-output-container pre {
  padding: 10px;
  background: #fff;
  border-radius: 3px;
}

## main.js
(function() {
  var editor = null;
  if (window.ace) {
    editor = ace.edit("snippet-runner-code-content");
    editor.setTheme("ace/theme/twilight");
    editor.getSession().setMode("ace/mode/ruby");
  }
  function setEditorValue(snippet) {
    if (window.ace && editor != null) {
      editor.getSession().setValue(snippet);
    } else {
      $("#snippet-runner-code-content").html('<pre>' + snippet + '</pre>');
    }
  }
  function getEditorValue() {
    if (window.ace && editor != null) {
      return editor.getSession().getValue();
    } else {
      return $("#snippet-runner-code-content").text();
    }
  }

  var evalURL = 'http://nama-app-kamu.herokuapp.com';
  $('.snippet-runner-code-action-run').click(function() {
    var $outputTarget = $runner.find('.snippet-runner-output'),
        snippet = getEditorValue();

    $.post(evalURL, { snippet: snippet }, function(data, textStatus, xhr) {
      $outputTarget.text(data);
    }).fail(function() {
      $outputTarget.html(snippetRequestError);
    });
  });
})();
	<!DOCTYPE html>
	<html>

	<head>
	<script type="text/javascript" src="http://cdnjs.cloudflare.com/ajax/libs/prefixfree/1.0.7/prefixfree.min.js"></script>
	<link rel="stylesheet" href="main.css" />
	</head>

	<body>

	<div id='snippet-runner'>

	<div id='snippet-runner-code-content' class='snippet-runner-code-content'>puts "Halo Ruby!"</div>
	<div class='snippet-runner-code-actions'>
	<a href='javascript:void(0);' class='snippet-runner-code-action snippet-runner-code-action-run'>Jalankan</a>
	</div>
	<div class='snippet-runner-output-container'>
	<h3>Output</h3>
	<pre class='snippet-runner-output'></pre>
	</div>

	</div>

	<script src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
	<script src="http://d1n0x3qji82z53.cloudfront.net/src-min-noconflict/ace.js" type="text/javascript" charset="utf-8"></script>
	<script src="./main.js" type="text/javascript"></script>
	</body>

	</html>
	* { margin: 0; padding: 0; }

	a { color: #4183C4; text-decoration: none; }

	#snippet-runner {
	font-family: Helvetica, Arial, sans-serif;
	text-align: center;
	position: fixed;
	margin: 0;
	top: 0;
	right: 0;
	left: 0;
	bottom: 0;
	background-color: #eee;
	background-image: linear-gradient(top, #eee, #ddd, #888);
	padding: 0 2%;
	overflow: auto;
	}

	#snippet-runner-code-content {
	text-shadow: 0 0 0 #fff;
	margin: 0;
	text-align: left;
	max-width: 650px;
	position: absolute;
	left: 0;
	bottom: 50px;
	right: 20%;
	top: 0;
	overflow: auto;
	}

	.snippet-runner-code-actions {
	position: absolute;
	bottom: 0;
	left: 0;
	right: 20%;
	max-width: 650px;
	margin: 0;
	}

	.snippet-runner-output-container {
	position: absolute;
	margin: 0;
	padding: 10px;
	text-align: left;
	left: 80%;
	top: 0;
	}

	@media only screen and (min-width: 813px) {
	.snippet-runner-output-container {
	left: 650px;
	}
	}

	.snippet-runner-code-action-run {
	display: block;
	padding: 15px;
	background-image: linear-gradient(top, #ccc, #bbb, #aaa);
	border: #777 1px solid;
	font-weight: bold;
	text-shadow: 0 1px 0 #fff;
	}

	.snippet-runner-code-action-run:active {
	background-image: linear-gradient(bottom, #ccc, #bbb, #aaa);
	box-shadow: inset 0 0 8px #888;
	}

	.snippet-runner-output-container pre {
	padding: 10px;
	background: #fff;
	border-radius: 3px;
	}
	(function() {
	var editor = null;
	if (window.ace) {
	editor = ace.edit("snippet-runner-code-content");
	editor.setTheme("ace/theme/twilight");
	editor.getSession().setMode("ace/mode/ruby");
	}
	function setEditorValue(snippet) {
	if (window.ace && editor != null) {
	editor.getSession().setValue(snippet);
	} else {
	$("#snippet-runner-code-content").html('<pre>' + snippet + '</pre>');
	}
	}
	function getEditorValue() {
	if (window.ace && editor != null) {
	return editor.getSession().getValue();
	} else {
	return $("#snippet-runner-code-content").text();
	}
	}

	var evalURL = 'http://nama-app-kamu.herokuapp.com';
	$('.snippet-runner-code-action-run').click(function() {
	var $outputTarget = $runner.find('.snippet-runner-output'),
	snippet = getEditorValue();

	$.post(evalURL, { snippet: snippet }, function(data, textStatus, xhr) {
	$outputTarget.text(data);
	}).fail(function() {
	$outputTarget.html(snippetRequestError);
	});
	});
	})();