在PHP中对齐表单

Question

How can I center align a form thatI created?

$form = <<<END
<form method='post' action=''>
      Adresa IP host : <input type='text' name='host'><br><br>
      <input type='submit' name='submit' value='Connect'>
</form>
END;

echo $form;

$t = new TELNET();
if (!empty($_POST)){
   $host = $_POST['host'];
   echo("CONNECT:".$t->Connect($host, $name, $pass)."<br>");
   echo("LOGIN:".(int)$t->LogIn());
   echo("<br>Status Interfete:<br>");
  $interfaces_status = ($t->GetOutputOf("show interface status"));
foreach ($interfaces_status as $value) {
    echo "$value <br>";

I want the form to be on the center of the page.

Answer 1

In css:

form {
    width: 800px;
    margin: auto;
}