<style>
table {
	width: 750px;
	border-collapse: collapse;
	margin:50px auto;
	}

/* Zebra striping */
tr:nth-of-type(odd) {
	background: #eee;
	}

th {
	background: #3498db;
	color: white;
	font-weight: bold;
	}

td, th {
	padding: 10px;
	border: 1px solid #ccc;
	text-align: left;
	font-size: 18px;
	}

/*
Max width before this PARTICULAR table gets nasty
This query will take effect for any screen smaller than 760px
and also iPads specifically.
*/
@media
only screen and (max-width: 760px),
(min-device-width: 768px) and (max-device-width: 1024px)  {

	table {
	  	width: 100%;
	}

	/* Force table to not be like tables anymore */
	table, thead, tbody, th, td, tr {
		display: block;
	}

	/* Hide table headers (but not display: none;, for accessibility) */
	thead tr {
		position: absolute;
		top: -9999px;
		left: -9999px;
	}

	tr { border: 1px solid #ccc; }

	td {
		/* Behave  like a "row" */
		border: none;
		border-bottom: 1px solid #eee;
		position: relative;
		padding-left: 50%;
	}

	td:before {
		/* Now like a table header */
		position: absolute;
		/* Top/left values mimic padding */
		top: 6px;
		left: 6px;
		width: 45%;
		padding-right: 10px;
		white-space: nowrap;
		/* Label the data */
		content: attr(data-column);

		color: #000;
		font-weight: bold;
	}

}

</style>

<table>
<tr>
<th>
Nama siswa
</th>
<th>
Kata Sandi
</th>
</tr>
<?php

$servername = "localhost";
$database = "sekolah";
$username = "root";
$password = "";
$sql = "mysql:host=$servername;dbname=$database;";
$option = [PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION];

// Create a new connection to the MySQL database using PDO, $konek is an object
try {
  $konek = new PDO($sql, $username, $password, $option);
  echo "sukses";
} catch (PDOException $error) {
  echo 'Eror: ' . $error->getMessage();
}

$users = $konek->prepare("SELECT * FROM siswa");
$users->execute();
$users = $users->fetchAll();
foreach ($users as $user) {
	$nama_siswa=$user['namasiswa'];
	$sandi_siswa=$user['katasandi'];
	?>
<tr>
<td> <?php  echo $nama_siswa ?>    </td>
<td> <?php  echo $sandi_siswa ?>    </td>
</tr>
<?php
	}
?>

</table>