uweb/zh/searchurl/ace_t.html

<style type='text/css' media='screen'>
    #editor {
        position: absolute;
        top: 0;
        right: 0;
        bottom: 0;
        left: 0;
    }
    #textarea{display:none}
</style>
<script src='http://cdn.bootcss.com/ace/1.4.9/ace.js'></script>
<script src='http://cdn.bootcss.com/ace/1.4.9/ext-language_tools.js'></script>
<pre id='editor'></pre>
<script src='ace.js'></script>
<textarea id='textarea'>
  &
html.replace(/<font.+\/font>/,'');