text går utanför tabel

<?php 
$dbHost = "localhost";
$dbUser = "";
$dbPass = "";
$dbname = "";

$db = mysql_connect($dbHost,$dbUser,$dbPass);
mysql_select_db($dbname,$db);


$requete = "SELECT ID, name, email, dateposted, comment FROM guestbook ORDER BY ID desc";
$result = mysql_query ($requete,$db);

while($row = mysql_fetch_assoc($result))
{
$name = $row['name'];
$email = $row['email'];
$comment = $row['comment'];
$datetime = $row["dateposted"];


if ($email)
echo "<div class='td'>" . $name;
echo ' <br /> Skrivet: '.$datetime.'<br />' . "</div>";
echo "<hr>";
echo "<div class='td'><p>" . ''.$comment.'' . "</p></div>";
echo "<br />";
}
?>

<?php 
$name = $_POST['name'];
$email = $_POST['email'];
$comment = $_POST['comment'];
$datetime = date("Y-m-d");

$comment = htmlspecialchars($comment);
$comment = nl2br($comment);

$dbHost = "localhost";
$dbUser = "";
$dbPass = "";
$dbname = "";

$db = mysql_connect($dbHost,$dbUser,$dbPass);
mysql_select_db($dbname,$db);

$sql="INSERT INTO guestbook (`name`, `email`, `dateposted`, `comment`) 
VALUES ('$name', '$email', '$datetime', '$comment')";

$result = mysql_query($sql, $db);

if ($result) {
header ("Location: gastbok.php");
} else
echo 'Ditt inlägg kunde inte skapas.';
?>