JSFiddle - React, Tailwind, and code Playground

HTML

<table>
					<tbody>
						<tr>
							<th>Selector</th>
							<th>IE7</th>
							<th>IE8</th>
							<th>IE9</th>
							<th>FF 3.6</th>
							<th>FF 4</th>
							<th>Safari 5</th>
							<th>Chrome 5</th>
							<th>Opera 10</th>
						</tr>
						<tr>
							<td>* selector</td>
							<td>yes</td>
							<td>yes</td>
							<td>yes</td>
							<td>yes</td>
							<td>yes</td>
							<td>yes</td>
							<td>yes</td>
							<td>yes</td>
						</tr>
						<tr>
							<td>:before :after</td>
							<td>no</td>
							<td>yes</td>
							<td>yes</td>
							<td>yes</td>
							<td>yes</td>
							<td>yes</td>
							<td>yes</td>
							<td>yes</td>
						</tr>
						<tr>
							<td>:nth-of-type()</td>
							<td>no</td>
							<td>no</td>
							<td>no</td>
							<td>yes</td>
							<td>yes</td>
							<td>yes</td>
							<td>yes</td>
							<td>incorrect</td>
						</tr>
						<tr>
							<td>background-clip</td>
							<td>no</td>
							<td>no</td>
							<td>yes</td>
							<td>no</td>
							<td>yes</td>
							<td>-webkit-</td>
							<td>-webkit-</td>
							<td>buggy</td>
						</tr>
						<tr>
							<td>::selection</td>
							<td>no</td>
							<td>no</td>
							<td>yes</td>
							<td>-moz-</td>
							<td>-moz-</td>
							<td>yes</td>
							<td>yes</td>
							<td>yes</td>
						</tr>
					</tbody>
				</table>


				<table>
					<tbody>
						<tr>
							<th>Selector</th>
							<th>IE7</th>
							<th>IE8</th>
							<th>IE9</th>
							<th>FF 3.6</th>
							<th>FF 4</th>
							<th>Safari 5</th>
							<th>Chrome 5</th>
							<th>Opera 10</th>
						</tr>
						<tr>
							<td>* selector</td>
							<td>yes</td>
							<td>yes</td>
							<td>yes</td>
							<td>yes</td>
							<td>yes</td>
							<td>yes</td>
							<td>yes</td>
							<td>yes</td>
						</tr>
						<tr>
							<td>:before...

JavaScript

jQuery("document").ready( function() {
    
 	var mytable = jQuery("table"); 
 	
 	mytable.prepend(document.createElement('thead'));
 	
	$("table thead").append($("tbody tr:eq(0)"));
    
});