Aidec,
<!DOCTYPE html>
<html>
<head>
<title>Untitled</title>
<meta charset="utf-8">
<style type="text/css">
[data-num]:after{
content: attr(data-num);
color: #FFFFFF;
}
[data-num="1"]{
background-color: red;
}
[data-num="0"]{
background-color: green;
}
</style>
</head>
<body>
<table>
<thead>
<tr>
<th>Title 1</th>
<th>Title 2</th>
<th>Title 3</th>
</tr>
</thead>
<tbody>
<tr>
<td data-num="1"></td>
<td data-num="0"></td>
<td data-num="0"></td>
</tr>
<tr>
<td data-num="0"></td>
<td data-num="0"></td>
<td data-num="0"></td>
</tr>
</tbody>
</table>
</body>
</html>