JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://ckeditor.com/apps/ckeditor/4.0.1/ckeditor.js"></script>


    <textarea style="width:250px;border:1px solid black;">The width that its need to be</textarea>
    <br>
    <br>
    <table style="width:250px" cellspacing="0" cellpadding="0" border="0">
        <tr>
            <td>
	            <textarea id="editor1" name="editor1"  style="width:550px;">The width that CKEditor increase it to be because of the toolbar</textarea>
            </td>
        </tr>
    </table>

JavaScript

CKEDITOR.replace('editor1',{
    //toolbar : [['Bold']],
//    width: '100%'
});