JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://ace.ajax.org/build/src/ace.js" type="text/javascript" charset="utf-8"></script>

 <div class="myeditor" id="editor"></div>

CSS

#editor { 
        position: absolute;
        top: 0;
        right: 0;
        bottom: 0;
        left: 0;
    }

.ace_editor {
    width:600px;
    height:300px;
}

JavaScript

var myCode = new Array(50).join( 'codeLine\n' );
    pos = 0;

editor = ace.edit("editor");
editor.setTheme("ace/theme/monokai");
editor.getSession().setMode("ace/mode/javascript");
editor.setValue(myCode, pos);

editor.scrollToLine(49);