<!DOCTYPE html>
<html>
<head>
<title>Titre du document</title>
<style>
th, td {
padding: 10px;
border: 1px solid #666;
}
</style>
</head>
<body>
<table style="width:80%; margin:30px auto; border-collapse:collapse;">
<tr>
<th>Mois</th>
<th>Date</th>
</tr>
<tr>
<td>Mars</td>
<td>10.09.2018</td>
</tr>
<tr>
<td>Juin</td>
<td>18.07.2018</td>
</tr>
</table>
</body>
</html>