<style type="text/css">
@media only screen and (max-device-width: 480px) {
TABLE {
width: 100%;
}
}
TABLE {
width: 60%;
}
</style>
<table cellspacing="0" border="0">
<tr>
<th>Заголовок 1</th>
<th>Заголовок 2</th>
</tr>
<tr><td>Тест1</td><td>19999</td></tr>
<tr><td>Тест2</td><td>19998</td></tr>
<tr><td>Тест3</td><td>1997</td></tr>
</table>